/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-with-pointer/simple-recursive.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.1-dev-b7b32d2
[2021-02-22 00:16:18,039 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2021-02-22 00:16:18,126 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-02-22 00:16:18,129 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-02-22 00:16:18,131 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-02-22 00:16:18,138 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-02-22 00:16:18,146 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-02-22 00:16:18,148 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-02-22 00:16:18,150 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-02-22 00:16:18,152 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-02-22 00:16:18,154 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-02-22 00:16:18,164 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-02-22 00:16:18,180 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-02-22 00:16:18,181 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2021-02-22 00:16:18,207 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-02-22 00:16:18,207 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-02-22 00:16:18,212 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-02-22 00:16:18,213 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-02-22 00:16:18,213 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-02-22 00:16:18,213 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-02-22 00:16:18,213 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-02-22 00:16:18,213 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-02-22 00:16:18,214 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-02-22 00:16:18,214 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-02-22 00:16:18,215 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-02-22 00:16:18,215 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-02-22 00:16:18,216 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-02-22 00:16:18,216 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-02-22 00:16:18,216 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-02-22 00:16:18,217 INFO  L138        SettingsManager]:  * Size of a code block=SingleStatement
[2021-02-22 00:16:18,217 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-02-22 00:16:18,217 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-02-22 00:16:18,217 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-02-22 00:16:18,218 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-02-22 00:16:18,218 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2021-02-22 00:16:18,218 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-02-22 00:16:18,218 INFO  L138        SettingsManager]:  * Use separate solver for trace checks=false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true
[2021-02-22 00:16:18,713 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-02-22 00:16:18,753 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-02-22 00:16:18,757 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-02-22 00:16:18,759 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-02-22 00:16:18,759 INFO  L275        PluginConnector]: CDTParser initialized
[2021-02-22 00:16:18,761 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c
[2021-02-22 00:16:18,842 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e1abe57/b44283b704df48f7aea67c1986a646d0/FLAGe662e830a
[2021-02-22 00:16:19,526 INFO  L306              CDTParser]: Found 1 translation units.
[2021-02-22 00:16:19,527 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c
[2021-02-22 00:16:19,535 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e1abe57/b44283b704df48f7aea67c1986a646d0/FLAGe662e830a
[2021-02-22 00:16:19,909 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98e1abe57/b44283b704df48f7aea67c1986a646d0
[2021-02-22 00:16:19,913 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-02-22 00:16:19,926 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-02-22 00:16:19,928 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-02-22 00:16:19,929 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-02-22 00:16:19,933 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-02-22 00:16:19,934 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:19" (1/1) ...
[2021-02-22 00:16:19,936 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308f9427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:19, skipping insertion in model container
[2021-02-22 00:16:19,936 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 12:16:19" (1/1) ...
[2021-02-22 00:16:19,945 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-02-22 00:16:19,960 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-02-22 00:16:20,113 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c[439,452]
[2021-02-22 00:16:20,120 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-02-22 00:16:20,131 INFO  L203         MainTranslator]: Completed pre-run
[2021-02-22 00:16:20,146 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-with-pointer/simple-recursive.c[439,452]
[2021-02-22 00:16:20,148 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-02-22 00:16:20,164 INFO  L208         MainTranslator]: Completed translation
[2021-02-22 00:16:20,165 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20 WrapperNode
[2021-02-22 00:16:20,165 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-02-22 00:16:20,166 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-02-22 00:16:20,167 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-02-22 00:16:20,167 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-02-22 00:16:20,180 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,181 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,188 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,189 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,195 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,197 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,198 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (1/1) ...
[2021-02-22 00:16:20,201 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-02-22 00:16:20,202 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-02-22 00:16:20,202 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-02-22 00:16:20,202 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-02-22 00:16:20,203 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (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
[2021-02-22 00:16:20,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-02-22 00:16:20,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-02-22 00:16:20,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2021-02-22 00:16:20,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure plus
[2021-02-22 00:16:20,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure foo
[2021-02-22 00:16:20,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2021-02-22 00:16:20,306 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2021-02-22 00:16:20,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-02-22 00:16:20,306 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2021-02-22 00:16:20,307 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-02-22 00:16:20,307 INFO  L130     BoogieDeclarations]: Found specification of procedure foo
[2021-02-22 00:16:20,307 INFO  L130     BoogieDeclarations]: Found specification of procedure plus
[2021-02-22 00:16:20,307 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-02-22 00:16:20,307 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-02-22 00:16:20,308 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2021-02-22 00:16:20,308 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-02-22 00:16:20,308 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-02-22 00:16:20,308 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-02-22 00:16:20,308 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-02-22 00:16:20,720 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-02-22 00:16:20,720 INFO  L299             CfgBuilder]: Removed 0 assume(true) statements.
[2021-02-22 00:16:20,725 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:20 BoogieIcfgContainer
[2021-02-22 00:16:20,726 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-02-22 00:16:20,727 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-02-22 00:16:20,728 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-02-22 00:16:20,747 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-02-22 00:16:20,748 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 12:16:19" (1/3) ...
[2021-02-22 00:16:20,750 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9718bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:20, skipping insertion in model container
[2021-02-22 00:16:20,751 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 12:16:20" (2/3) ...
[2021-02-22 00:16:20,752 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9718bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 12:16:20, skipping insertion in model container
[2021-02-22 00:16:20,752 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 12:16:20" (3/3) ...
[2021-02-22 00:16:20,758 INFO  L111   eAbstractionObserver]: Analyzing ICFG simple-recursive.c
[2021-02-22 00:16:20,768 INFO  L153   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2021-02-22 00:16:20,772 INFO  L165   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-02-22 00:16:20,789 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-02-22 00:16:20,815 INFO  L376      AbstractCegarLoop]: Interprodecural is true
[2021-02-22 00:16:20,815 INFO  L377      AbstractCegarLoop]: Hoare is true
[2021-02-22 00:16:20,815 INFO  L378      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2021-02-22 00:16:20,815 INFO  L379      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-02-22 00:16:20,815 INFO  L380      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-02-22 00:16:20,816 INFO  L381      AbstractCegarLoop]: Difference is false
[2021-02-22 00:16:20,816 INFO  L382      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-02-22 00:16:20,816 INFO  L386      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-02-22 00:16:20,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states.
[2021-02-22 00:16:20,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-02-22 00:16:20,844 INFO  L414         BasicCegarLoop]: Found error trace
[2021-02-22 00:16:20,845 INFO  L422         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]
[2021-02-22 00:16:20,846 INFO  L428      AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-02-22 00:16:20,853 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-02-22 00:16:20,853 INFO  L82        PathProgramCache]: Analyzing trace with hash -1076901845, now seen corresponding path program 1 times
[2021-02-22 00:16:20,864 INFO  L162   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-02-22 00:16:20,864 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892467480]
[2021-02-22 00:16:20,864 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-02-22 00:16:20,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-02-22 00:16:20,994 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-02-22 00:16:20,995 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.UnsupportedOperationException: Proofs are not supported
	at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getProof(Scriptor.java:166)
	at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392)
	at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337)
	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.<init>(NestedInterpolantsBuilder.java:166)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:97)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:107)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:84)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:74)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:131)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
	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:320)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2021-02-22 00:16:21,002 INFO  L168              Benchmark]: Toolchain (without parser) took 1083.59 ms. Allocated memory is still 151.0 MB. Free memory was 127.3 MB in the beginning and 122.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB.
[2021-02-22 00:16:21,003 INFO  L168              Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-22 00:16:21,004 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 237.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2021-02-22 00:16:21,006 INFO  L168              Benchmark]: Boogie Preprocessor took 34.58 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-02-22 00:16:21,007 INFO  L168              Benchmark]: RCFGBuilder took 524.07 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 99.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB.
[2021-02-22 00:16:21,008 INFO  L168              Benchmark]: TraceAbstraction took 270.51 ms. Allocated memory is still 151.0 MB. Free memory was 99.0 MB in the beginning and 122.9 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-02-22 00:16:21,012 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 128.7 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 237.12 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 117.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 34.58 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 524.07 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 99.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 270.51 ms. Allocated memory is still 151.0 MB. Free memory was 99.0 MB in the beginning and 122.9 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - ExceptionOrErrorResult: UnsupportedOperationException: Proofs are not supported
    de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Proofs are not supported: de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.getProof(Scriptor.java:166)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...