/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 20:25:45,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 20:25:45,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 20:25:45,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 20:25:45,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 20:25:45,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 20:25:45,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 20:25:45,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 20:25:45,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 20:25:45,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 20:25:45,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 20:25:45,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 20:25:45,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 20:25:45,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 20:25:45,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 20:25:45,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 20:25:45,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 20:25:45,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 20:25:45,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 20:25:45,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 20:25:45,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 20:25:45,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 20:25:45,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 20:25:45,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 20:25:45,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 20:25:45,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 20:25:45,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 20:25:45,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 20:25:45,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 20:25:45,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 20:25:45,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 20:25:45,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 20:25:45,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 20:25:45,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 20:25:45,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 20:25:45,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 20:25:45,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 20:25:45,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 20:25:45,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 20:25:45,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 20:25:45,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 20:25:45,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 20:25:45,275 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 20:25:45,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 20:25:45,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 20:25:45,277 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 20:25:45,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 20:25:45,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 20:25:45,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 20:25:45,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 20:25:45,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 20:25:45,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 20:25:45,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 20:25:45,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 20:25:45,280 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 20:25:45,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 20:25:45,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 20:25:45,281 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 20:25:45,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 20:25:45,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 20:25:45,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 20:25:45,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 20:25:45,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 20:25:45,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 20:25:45,283 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 20:25:45,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 20:25:45,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 20:25:45,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 20:25:45,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 20:25:45,581 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 20:25:45,582 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-07-10 20:25:45,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10f0ff9c/776e9032f77d4c3c8c56bc387e819a39/FLAG577b0c5cc [2020-07-10 20:25:46,007 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 20:25:46,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt8.c [2020-07-10 20:25:46,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10f0ff9c/776e9032f77d4c3c8c56bc387e819a39/FLAG577b0c5cc [2020-07-10 20:25:46,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10f0ff9c/776e9032f77d4c3c8c56bc387e819a39 [2020-07-10 20:25:46,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 20:25:46,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 20:25:46,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 20:25:46,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 20:25:46,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 20:25:46,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@172af72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46, skipping insertion in model container [2020-07-10 20:25:46,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 20:25:46,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 20:25:46,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:25:46,683 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 20:25:46,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:25:46,745 INFO L208 MainTranslator]: Completed translation [2020-07-10 20:25:46,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46 WrapperNode [2020-07-10 20:25:46,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 20:25:46,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 20:25:46,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 20:25:46,747 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 20:25:46,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (1/1) ... [2020-07-10 20:25:46,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 20:25:46,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 20:25:46,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 20:25:46,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 20:25:46,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (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 [2020-07-10 20:25:47,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 20:25:47,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 20:25:47,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 20:25:47,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 20:25:47,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 20:25:47,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 20:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 20:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 20:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 20:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 20:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 20:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 20:25:47,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 20:25:47,555 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 20:25:47,555 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 20:25:47,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:25:47 BoogieIcfgContainer [2020-07-10 20:25:47,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 20:25:47,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 20:25:47,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 20:25:47,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 20:25:47,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:25:46" (1/3) ... [2020-07-10 20:25:47,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d8a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:25:47, skipping insertion in model container [2020-07-10 20:25:47,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:25:46" (2/3) ... [2020-07-10 20:25:47,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d8a2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:25:47, skipping insertion in model container [2020-07-10 20:25:47,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:25:47" (3/3) ... [2020-07-10 20:25:47,569 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt8.c [2020-07-10 20:25:47,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 20:25:47,588 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 20:25:47,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 20:25:47,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 20:25:47,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 20:25:47,629 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 20:25:47,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 20:25:47,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 20:25:47,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 20:25:47,630 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 20:25:47,630 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 20:25:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-07-10 20:25:47,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-10 20:25:47,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:25:47,661 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] [2020-07-10 20:25:47,662 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:25:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:25:47,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1494174094, now seen corresponding path program 1 times [2020-07-10 20:25:47,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:25:47,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354325265] [2020-07-10 20:25:47,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:25:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:25:47,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 20:25:47,880 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.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:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 20:25:47,888 INFO L168 Benchmark]: Toolchain (without parser) took 1413.23 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 103.4 MB in the beginning and 145.4 MB in the end (delta: -42.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:47,889 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 20:25:47,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.25 ms. Allocated memory is still 146.8 MB. Free memory was 103.2 MB in the beginning and 92.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:47,891 INFO L168 Benchmark]: Boogie Preprocessor took 209.14 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 92.7 MB in the beginning and 186.4 MB in the end (delta: -93.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:47,892 INFO L168 Benchmark]: RCFGBuilder took 603.93 ms. Allocated memory is still 207.6 MB. Free memory was 185.7 MB in the beginning and 160.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:47,893 INFO L168 Benchmark]: TraceAbstraction took 322.87 ms. Allocated memory is still 207.6 MB. Free memory was 159.5 MB in the beginning and 145.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-07-10 20:25:47,898 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.25 ms. Allocated memory is still 146.8 MB. Free memory was 103.2 MB in the beginning and 92.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 209.14 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 92.7 MB in the beginning and 186.4 MB in the end (delta: -93.6 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 603.93 ms. Allocated memory is still 207.6 MB. Free memory was 185.7 MB in the beginning and 160.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 322.87 ms. Allocated memory is still 207.6 MB. Free memory was 159.5 MB in the beginning and 145.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 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...