/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-crafted-1/sumt3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:56:41,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:56:41,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:56:41,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:56:41,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:56:41,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:56:41,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:56:41,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:56:41,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:56:41,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:56:41,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:56:41,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:56:41,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:56:41,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:56:41,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:56:41,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:56:41,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:56:41,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:56:41,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:56:41,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:56:41,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:56:41,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:56:41,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:56:41,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:56:41,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 14:56:41,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 14:56:41,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 14:56:41,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 14:56:41,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 14:56:41,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 14:56:41,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 14:56:41,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 14:56:41,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 14:56:41,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 14:56:41,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 14:56:41,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 14:56:41,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 14:56:41,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 14:56:41,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:56:41,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:56:41,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:56:41,466 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 14:56:41,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:56:41,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:56:41,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:56:41,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:56:41,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:56:41,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:56:41,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:56:41,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:56:41,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:56:41,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:56:41,481 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:56:41,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:56:41,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:56:41,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:56:41,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:56:41,482 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:56:41,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:56:41,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:56:41,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:56:41,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:56:41,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:56:41,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:56:41,484 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:56:41,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:56:41,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:56:41,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:56:41,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:56:41,851 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:56:41,852 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt3.c [2020-07-17 14:56:41,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3995b7ac/086aec2bd90d4e888acb1392d5d75cbd/FLAGcfc313cf2 [2020-07-17 14:56:42,527 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:56:42,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt3.c [2020-07-17 14:56:42,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3995b7ac/086aec2bd90d4e888acb1392d5d75cbd/FLAGcfc313cf2 [2020-07-17 14:56:42,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3995b7ac/086aec2bd90d4e888acb1392d5d75cbd [2020-07-17 14:56:42,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:56:42,892 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:56:42,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:56:42,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:56:42,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:56:42,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:56:42" (1/1) ... [2020-07-17 14:56:42,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f18f3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:42, skipping insertion in model container [2020-07-17 14:56:42,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:56:42" (1/1) ... [2020-07-17 14:56:42,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:56:42,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:56:43,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:56:43,213 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:56:43,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:56:43,260 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:56:43,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43 WrapperNode [2020-07-17 14:56:43,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:56:43,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:56:43,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:56:43,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:56:43,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (1/1) ... [2020-07-17 14:56:43,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:56:43,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:56:43,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:56:43,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:56:43,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (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 14:56:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:56:43,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:56:43,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 14:56:43,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 14:56:43,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:56:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:56:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 14:56:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 14:56:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 14:56:43,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 14:56:43,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:56:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:56:43,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:56:43,840 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:56:43,842 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 14:56:43,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:56:43 BoogieIcfgContainer [2020-07-17 14:56:43,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:56:43,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:56:43,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:56:43,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:56:43,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:56:42" (1/3) ... [2020-07-17 14:56:43,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae9410d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:56:43, skipping insertion in model container [2020-07-17 14:56:43,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:56:43" (2/3) ... [2020-07-17 14:56:43,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae9410d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:56:43, skipping insertion in model container [2020-07-17 14:56:43,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:56:43" (3/3) ... [2020-07-17 14:56:43,869 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2020-07-17 14:56:43,889 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:56:43,905 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:56:43,937 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:56:44,025 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:56:44,028 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:56:44,029 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:56:44,029 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:56:44,029 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:56:44,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:56:44,029 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:56:44,030 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:56:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-17 14:56:44,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-17 14:56:44,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:56:44,075 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] [2020-07-17 14:56:44,076 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:56:44,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:56:44,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1514708489, now seen corresponding path program 1 times [2020-07-17 14:56:44,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:56:44,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729432775] [2020-07-17 14:56:44,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:56:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:56:44,301 ERROR L276 FreeRefinementEngine]: Caught unknown exception: Asserted terms must be closed [2020-07-17 14:56:44,301 WARN L341 FreeRefinementEngine]: Global settings require throwing the following exception [2020-07-17 14:56:44,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:56:44,303 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-17 14:56:44,318 INFO L168 Benchmark]: Toolchain (without parser) took 1426.56 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 101.4 MB in the beginning and 152.7 MB in the end (delta: -51.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2020-07-17 14:56:44,319 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 144.2 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 14:56:44,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.24 ms. Allocated memory is still 144.2 MB. Free memory was 101.0 MB in the beginning and 91.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-17 14:56:44,322 INFO L168 Benchmark]: Boogie Preprocessor took 166.11 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 91.2 MB in the beginning and 181.2 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-17 14:56:44,323 INFO L168 Benchmark]: RCFGBuilder took 423.73 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 166.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-17 14:56:44,325 INFO L168 Benchmark]: TraceAbstraction took 458.64 ms. Allocated memory is still 202.4 MB. Free memory was 166.2 MB in the beginning and 152.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-07-17 14:56:44,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 144.2 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 368.24 ms. Allocated memory is still 144.2 MB. Free memory was 101.0 MB in the beginning and 91.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 166.11 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 91.2 MB in the beginning and 181.2 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.73 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 166.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 458.64 ms. Allocated memory is still 202.4 MB. Free memory was 166.2 MB in the beginning and 152.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 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...