/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/sumt3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 17:40:48,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 17:40:48,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 17:40:48,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 17:40:48,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 17:40:48,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 17:40:48,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 17:40:48,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 17:40:48,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 17:40:48,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 17:40:48,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 17:40:48,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 17:40:48,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 17:40:48,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 17:40:48,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 17:40:48,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 17:40:48,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 17:40:48,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 17:40:48,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 17:40:48,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 17:40:48,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 17:40:48,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 17:40:48,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 17:40:48,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 17:40:48,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 17:40:48,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 17:40:48,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 17:40:48,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 17:40:48,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 17:40:48,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 17:40:48,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 17:40:48,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 17:40:48,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 17:40:48,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 17:40:48,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 17:40:48,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 17:40:48,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 17:40:48,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 17:40:48,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 17:40:48,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 17:40:48,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 17:40:48,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 17:40:48,784 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 17:40:48,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 17:40:48,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 17:40:48,788 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 17:40:48,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 17:40:48,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 17:40:48,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 17:40:48,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 17:40:48,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 17:40:48,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 17:40:48,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 17:40:48,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 17:40:48,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 17:40:48,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 17:40:48,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 17:40:48,792 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 17:40:48,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 17:40:48,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 17:40:48,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:40:48,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 17:40:48,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 17:40:48,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 17:40:48,793 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 17:40:49,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 17:40:49,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 17:40:49,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 17:40:49,106 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 17:40:49,107 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 17:40:49,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt3.c [2020-07-08 17:40:49,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eef06056/9d6f00fb384449bda841f03afc4be31e/FLAG5430a26a7 [2020-07-08 17:40:49,639 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 17:40:49,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt3.c [2020-07-08 17:40:49,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eef06056/9d6f00fb384449bda841f03afc4be31e/FLAG5430a26a7 [2020-07-08 17:40:50,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eef06056/9d6f00fb384449bda841f03afc4be31e [2020-07-08 17:40:50,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 17:40:50,029 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 17:40:50,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 17:40:50,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 17:40:50,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 17:40:50,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2512ac3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50, skipping insertion in model container [2020-07-08 17:40:50,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 17:40:50,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 17:40:50,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:40:50,252 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 17:40:50,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:40:50,288 INFO L208 MainTranslator]: Completed translation [2020-07-08 17:40:50,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50 WrapperNode [2020-07-08 17:40:50,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 17:40:50,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 17:40:50,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 17:40:50,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 17:40:50,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (1/1) ... [2020-07-08 17:40:50,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 17:40:50,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 17:40:50,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 17:40:50,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 17:40:50,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (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 [2020-07-08 17:40:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 17:40:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 17:40:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 17:40:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 17:40:50,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 17:40:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 17:40:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 17:40:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 17:40:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 17:40:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 17:40:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 17:40:50,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 17:40:50,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 17:40:50,804 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 17:40:50,804 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 17:40:50,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:40:50 BoogieIcfgContainer [2020-07-08 17:40:50,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 17:40:50,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 17:40:50,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 17:40:50,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 17:40:50,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 05:40:50" (1/3) ... [2020-07-08 17:40:50,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d86b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:40:50, skipping insertion in model container [2020-07-08 17:40:50,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:40:50" (2/3) ... [2020-07-08 17:40:50,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77d86b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:40:50, skipping insertion in model container [2020-07-08 17:40:50,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:40:50" (3/3) ... [2020-07-08 17:40:50,817 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2020-07-08 17:40:50,828 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 17:40:50,835 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 17:40:50,851 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 17:40:50,871 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 17:40:50,871 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 17:40:50,871 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 17:40:50,871 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 17:40:50,872 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 17:40:50,872 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 17:40:50,872 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 17:40:50,872 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 17:40:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-08 17:40:50,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-08 17:40:50,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:40:50,898 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] [2020-07-08 17:40:50,898 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:40:50,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:40:50,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1514708489, now seen corresponding path program 1 times [2020-07-08 17:40:50,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:40:50,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732800478] [2020-07-08 17:40:50,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:40:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:40:51,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 17:40:51,083 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:799) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:883) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 17:40:51,091 INFO L168 Benchmark]: Toolchain (without parser) took 1058.89 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 103.3 MB in the beginning and 148.2 MB in the end (delta: -44.9 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:51,092 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 17:40:51,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.71 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:51,096 INFO L168 Benchmark]: Boogie Preprocessor took 123.62 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.0 MB in the beginning and 182.1 MB in the end (delta: -89.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:51,098 INFO L168 Benchmark]: RCFGBuilder took 395.80 ms. Allocated memory is still 202.9 MB. Free memory was 182.1 MB in the beginning and 161.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:51,100 INFO L168 Benchmark]: TraceAbstraction took 275.42 ms. Allocated memory is still 202.9 MB. Free memory was 161.0 MB in the beginning and 148.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-08 17:40:51,111 INFO L336 ainManager$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 1.11 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.71 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.62 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.0 MB in the beginning and 182.1 MB in the end (delta: -89.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 395.80 ms. Allocated memory is still 202.9 MB. Free memory was 182.1 MB in the beginning and 161.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 275.42 ms. Allocated memory is still 202.9 MB. Free memory was 161.0 MB in the beginning and 148.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 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...