/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/id2_b3_o2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 00:51:14,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 00:51:14,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 00:51:14,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 00:51:14,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 00:51:14,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 00:51:14,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 00:51:14,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 00:51:14,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 00:51:14,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 00:51:14,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 00:51:14,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 00:51:14,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 00:51:14,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 00:51:14,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 00:51:14,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 00:51:14,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 00:51:14,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 00:51:14,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 00:51:14,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 00:51:14,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 00:51:14,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 00:51:14,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 00:51:14,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 00:51:14,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 00:51:14,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 00:51:14,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 00:51:14,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 00:51:14,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 00:51:14,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 00:51:14,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 00:51:14,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 00:51:14,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 00:51:14,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 00:51:14,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 00:51:14,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 00:51:14,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 00:51:14,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 00:51:14,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 00:51:14,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 00:51:14,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 00:51:14,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 00:51:14,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 00:51:14,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 00:51:14,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 00:51:14,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 00:51:14,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 00:51:14,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 00:51:14,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 00:51:14,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 00:51:14,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 00:51:14,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 00:51:14,528 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 00:51:14,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 00:51:14,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 00:51:14,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 00:51:14,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 00:51:14,529 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 00:51:14,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 00:51:14,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 00:51:14,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 00:51:14,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 00:51:14,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 00:51:14,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 00:51:14,535 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-11 00:51:14,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 00:51:14,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 00:51:14,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 00:51:14,830 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 00:51:14,830 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 00:51:14,831 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id2_b3_o2.c [2020-07-11 00:51:14,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f4df4a0/1e6e4e9de22b4d5cb7d0a20d7dfce94d/FLAG4784f451e [2020-07-11 00:51:15,255 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 00:51:15,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id2_b3_o2.c [2020-07-11 00:51:15,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f4df4a0/1e6e4e9de22b4d5cb7d0a20d7dfce94d/FLAG4784f451e [2020-07-11 00:51:15,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f4df4a0/1e6e4e9de22b4d5cb7d0a20d7dfce94d [2020-07-11 00:51:15,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 00:51:15,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 00:51:15,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 00:51:15,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 00:51:15,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 00:51:15,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:51:15" (1/1) ... [2020-07-11 00:51:15,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72978ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:15, skipping insertion in model container [2020-07-11 00:51:15,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:51:15" (1/1) ... [2020-07-11 00:51:15,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 00:51:15,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 00:51:15,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:51:15,969 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 00:51:15,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:51:16,013 INFO L208 MainTranslator]: Completed translation [2020-07-11 00:51:16,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16 WrapperNode [2020-07-11 00:51:16,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 00:51:16,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 00:51:16,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 00:51:16,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 00:51:16,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (1/1) ... [2020-07-11 00:51:16,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 00:51:16,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 00:51:16,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 00:51:16,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 00:51:16,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (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 [2020-07-11 00:51:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 00:51:16,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 00:51:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-11 00:51:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-07-11 00:51:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 00:51:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-11 00:51:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 00:51:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-11 00:51:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-07-11 00:51:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 00:51:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 00:51:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 00:51:16,631 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 00:51:16,631 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-11 00:51:16,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:51:16 BoogieIcfgContainer [2020-07-11 00:51:16,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 00:51:16,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 00:51:16,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 00:51:16,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 00:51:16,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 12:51:15" (1/3) ... [2020-07-11 00:51:16,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215e49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:51:16, skipping insertion in model container [2020-07-11 00:51:16,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:51:16" (2/3) ... [2020-07-11 00:51:16,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215e49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:51:16, skipping insertion in model container [2020-07-11 00:51:16,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:51:16" (3/3) ... [2020-07-11 00:51:16,642 INFO L109 eAbstractionObserver]: Analyzing ICFG id2_b3_o2.c [2020-07-11 00:51:16,652 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 00:51:16,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 00:51:16,671 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 00:51:16,692 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 00:51:16,692 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 00:51:16,692 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 00:51:16,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 00:51:16,693 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 00:51:16,693 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 00:51:16,693 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 00:51:16,693 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 00:51:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-11 00:51:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-11 00:51:16,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 00:51:16,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 00:51:16,720 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 00:51:16,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 00:51:16,726 INFO L82 PathProgramCache]: Analyzing trace with hash 875745540, now seen corresponding path program 1 times [2020-07-11 00:51:16,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 00:51:16,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888706174] [2020-07-11 00:51:16,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 00:51:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 00:51:16,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 00:51:16,835 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:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:391) 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.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-11 00:51:16,842 INFO L168 Benchmark]: Toolchain (without parser) took 1121.31 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 105.5 MB in the beginning and 153.1 MB in the end (delta: -47.6 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-07-11 00:51:16,843 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 124.0 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-11 00:51:16,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.1 MB in the beginning and 95.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-11 00:51:16,845 INFO L168 Benchmark]: Boogie Preprocessor took 125.11 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 95.4 MB in the beginning and 183.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-11 00:51:16,846 INFO L168 Benchmark]: RCFGBuilder took 495.51 ms. Allocated memory is still 204.5 MB. Free memory was 183.7 MB in the beginning and 165.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-07-11 00:51:16,846 INFO L168 Benchmark]: TraceAbstraction took 202.25 ms. Allocated memory is still 204.5 MB. Free memory was 164.5 MB in the beginning and 153.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-11 00:51:16,850 INFO L336 ainManager$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 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 124.0 MB in the beginning and 123.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 293.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.1 MB in the beginning and 95.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.11 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 95.4 MB in the beginning and 183.7 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 495.51 ms. Allocated memory is still 204.5 MB. Free memory was 183.7 MB in the beginning and 165.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202.25 ms. Allocated memory is still 204.5 MB. Free memory was 164.5 MB in the beginning and 153.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 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...