/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/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 00:53:06,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 00:53:06,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 00:53:06,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 00:53:06,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 00:53:06,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 00:53:06,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 00:53:06,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 00:53:06,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 00:53:06,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 00:53:06,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 00:53:06,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 00:53:06,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 00:53:06,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 00:53:06,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 00:53:06,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 00:53:06,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 00:53:06,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 00:53:06,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 00:53:06,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 00:53:06,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 00:53:06,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 00:53:06,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 00:53:06,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 00:53:06,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 00:53:06,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 00:53:06,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 00:53:06,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 00:53:06,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 00:53:06,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 00:53:06,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 00:53:06,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 00:53:06,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 00:53:06,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 00:53:06,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 00:53:06,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 00:53:06,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 00:53:06,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 00:53:06,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 00:53:06,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 00:53:06,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 00:53:06,754 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 00:53:06,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 00:53:06,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 00:53:06,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 00:53:06,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 00:53:06,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 00:53:06,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 00:53:06,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 00:53:06,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 00:53:06,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 00:53:06,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 00:53:06,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 00:53:06,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 00:53:06,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 00:53:06,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 00:53:06,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 00:53:06,778 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 00:53:06,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 00:53:06,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 00:53:06,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 00:53:06,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 00:53:06,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 00:53:06,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 00:53:06,780 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 00:53:07,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 00:53:07,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 00:53:07,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 00:53:07,085 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 00:53:07,086 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 00:53:07,087 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-07-11 00:53:07,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7fca473/9163877210c04ee4bbcf94259d77b02e/FLAGc4c31d9bf [2020-07-11 00:53:07,652 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 00:53:07,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-07-11 00:53:07,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7fca473/9163877210c04ee4bbcf94259d77b02e/FLAGc4c31d9bf [2020-07-11 00:53:08,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7fca473/9163877210c04ee4bbcf94259d77b02e [2020-07-11 00:53:08,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 00:53:08,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 00:53:08,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 00:53:08,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 00:53:08,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 00:53:08,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1141d177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08, skipping insertion in model container [2020-07-11 00:53:08,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 00:53:08,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 00:53:08,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:53:08,271 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 00:53:08,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:53:08,319 INFO L208 MainTranslator]: Completed translation [2020-07-11 00:53:08,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08 WrapperNode [2020-07-11 00:53:08,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 00:53:08,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 00:53:08,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 00:53:08,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 00:53:08,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (1/1) ... [2020-07-11 00:53:08,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 00:53:08,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 00:53:08,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 00:53:08,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 00:53:08,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (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 00:53:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 00:53:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 00:53:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-07-11 00:53:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 00:53:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-11 00:53:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 00:53:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-07-11 00:53:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 00:53:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 00:53:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 00:53:08,716 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 00:53:08,717 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-11 00:53:08,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:53:08 BoogieIcfgContainer [2020-07-11 00:53:08,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 00:53:08,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 00:53:08,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 00:53:08,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 00:53:08,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 12:53:08" (1/3) ... [2020-07-11 00:53:08,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f486258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:53:08, skipping insertion in model container [2020-07-11 00:53:08,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:53:08" (2/3) ... [2020-07-11 00:53:08,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f486258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:53:08, skipping insertion in model container [2020-07-11 00:53:08,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:53:08" (3/3) ... [2020-07-11 00:53:08,731 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-07-11 00:53:08,751 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 00:53:08,762 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 00:53:08,780 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 00:53:08,821 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 00:53:08,824 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 00:53:08,825 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 00:53:08,825 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 00:53:08,825 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 00:53:08,825 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 00:53:08,825 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 00:53:08,825 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 00:53:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-11 00:53:08,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-11 00:53:08,856 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 00:53:08,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 00:53:08,858 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 00:53:08,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 00:53:08,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-07-11 00:53:08,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 00:53:08,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640696537] [2020-07-11 00:53:08,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 00:53:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 00:53:08,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 00:53:08,988 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-11 00:53:08,995 INFO L168 Benchmark]: Toolchain (without parser) took 963.11 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 155.6 MB in the end (delta: -53.1 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-11 00:53:08,997 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-11 00:53:08,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.92 ms. Allocated memory is still 143.7 MB. Free memory was 102.3 MB in the beginning and 92.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-11 00:53:08,999 INFO L168 Benchmark]: Boogie Preprocessor took 28.03 ms. Allocated memory is still 143.7 MB. Free memory was 92.4 MB in the beginning and 91.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-11 00:53:09,001 INFO L168 Benchmark]: RCFGBuilder took 372.23 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 91.0 MB in the beginning and 166.8 MB in the end (delta: -75.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-11 00:53:09,001 INFO L168 Benchmark]: TraceAbstraction took 268.48 ms. Allocated memory is still 200.8 MB. Free memory was 166.1 MB in the beginning and 155.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-11 00:53:09,006 INFO L336 ainManager$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 0.29 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 287.92 ms. Allocated memory is still 143.7 MB. Free memory was 102.3 MB in the beginning and 92.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.03 ms. Allocated memory is still 143.7 MB. Free memory was 92.4 MB in the beginning and 91.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.23 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 91.0 MB in the beginning and 166.8 MB in the end (delta: -75.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 268.48 ms. Allocated memory is still 200.8 MB. Free memory was 166.1 MB in the beginning and 155.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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...