/usr/bin/java -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/loops/sum03-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:53:59,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:53:59,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:53:59,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:53:59,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:53:59,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:53:59,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:53:59,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:53:59,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:53:59,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:53:59,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:53:59,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:53:59,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:53:59,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:53:59,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:53:59,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:53:59,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:53:59,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:53:59,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:53:59,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:53:59,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:53:59,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:53:59,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:53:59,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:53:59,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 14:53:59,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 14:53:59,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 14:53:59,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 14:53:59,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 14:53:59,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 14:53:59,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 14:53:59,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 14:53:59,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 14:53:59,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 14:53:59,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 14:53:59,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 14:53:59,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 14:53:59,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 14:53:59,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:53:59,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:53:59,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:53:59,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 14:53:59,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:53:59,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:53:59,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:53:59,933 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:53:59,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:53:59,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:53:59,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:53:59,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:53:59,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:53:59,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:53:59,934 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:53:59,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:53:59,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:53:59,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:53:59,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:53:59,935 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:53:59,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:53:59,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:53:59,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:53:59,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:53:59,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:53:59,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:53:59,937 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:54:00,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:54:00,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:54:00,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:54:00,234 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:54:00,234 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:54:00,235 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-2.i [2020-07-17 14:54:00,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f9f2a82/612a766737854362b9d56e7eb4ee543a/FLAG9e0ad9c08 [2020-07-17 14:54:00,670 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:54:00,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-2.i [2020-07-17 14:54:00,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f9f2a82/612a766737854362b9d56e7eb4ee543a/FLAG9e0ad9c08 [2020-07-17 14:54:01,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10f9f2a82/612a766737854362b9d56e7eb4ee543a [2020-07-17 14:54:01,104 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:54:01,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:54:01,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:54:01,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:54:01,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:54:01,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ba52b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01, skipping insertion in model container [2020-07-17 14:54:01,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:54:01,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:54:01,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:54:01,297 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:54:01,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:54:01,329 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:54:01,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01 WrapperNode [2020-07-17 14:54:01,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:54:01,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:54:01,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:54:01,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:54:01,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (1/1) ... [2020-07-17 14:54:01,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:54:01,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:54:01,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:54:01,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:54:01,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (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 [2020-07-17 14:54:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:54:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:54:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 14:54:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:54:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:54:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 14:54:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-17 14:54:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:54:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:54:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:54:01,718 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:54:01,719 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:54:01,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:54:01 BoogieIcfgContainer [2020-07-17 14:54:01,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:54:01,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:54:01,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:54:01,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:54:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:54:01" (1/3) ... [2020-07-17 14:54:01,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcfd6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:54:01, skipping insertion in model container [2020-07-17 14:54:01,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:54:01" (2/3) ... [2020-07-17 14:54:01,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcfd6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:54:01, skipping insertion in model container [2020-07-17 14:54:01,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:54:01" (3/3) ... [2020-07-17 14:54:01,731 INFO L109 eAbstractionObserver]: Analyzing ICFG sum03-2.i [2020-07-17 14:54:01,742 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:54:01,749 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:54:01,762 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:54:01,785 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:54:01,785 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:54:01,786 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:54:01,786 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:54:01,786 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:54:01,786 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:54:01,786 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:54:01,786 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:54:01,801 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-17 14:54:01,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 14:54:01,812 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:01,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:54:01,813 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1015763017, now seen corresponding path program 1 times [2020-07-17 14:54:01,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:01,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645274660] [2020-07-17 14:54:01,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:02,076 ERROR L276 FreeRefinementEngine]: Caught unknown exception: Asserted terms must be closed [2020-07-17 14:54:02,077 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-07-17 14:54:02,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:54:02,078 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Asserted terms must be closed at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:665) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.InterpolantChecker.checkFinalInterpolants(InterpolantChecker.java:423) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:218) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:874) 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.(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:283) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-17 14:54:02,083 INFO L168 Benchmark]: Toolchain (without parser) took 976.19 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 153.9 MB in the end (delta: -51.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:02,084 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 143.7 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 14:54:02,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.20 ms. Allocated memory is still 143.7 MB. Free memory was 101.8 MB in the beginning and 92.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:02,086 INFO L168 Benchmark]: Boogie Preprocessor took 32.45 ms. Allocated memory is still 143.7 MB. Free memory was 92.5 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:02,088 INFO L168 Benchmark]: RCFGBuilder took 358.96 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 90.9 MB in the beginning and 167.9 MB in the end (delta: -77.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:02,089 INFO L168 Benchmark]: TraceAbstraction took 356.06 ms. Allocated memory is still 200.3 MB. Free memory was 167.2 MB in the beginning and 153.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-07-17 14:54:02,094 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 143.7 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 222.20 ms. Allocated memory is still 143.7 MB. Free memory was 101.8 MB in the beginning and 92.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.45 ms. Allocated memory is still 143.7 MB. Free memory was 92.5 MB in the beginning and 91.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.96 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 90.9 MB in the beginning and 167.9 MB in the end (delta: -77.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 356.06 ms. Allocated memory is still 200.3 MB. Free memory was 167.2 MB in the beginning and 153.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Asserted terms must be closed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Asserted terms must be closed: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:665) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...