/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/recursive-simple/sum_non_eq-3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:19:29,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:19:29,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:19:29,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:19:29,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:19:29,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:19:29,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:19:29,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:19:29,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:19:29,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:19:29,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:19:29,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:19:29,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:19:29,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:19:29,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:19:29,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:19:29,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:19:29,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:19:29,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:19:29,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:19:29,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:19:29,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:19:29,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:19:29,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:19:29,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:19:29,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:19:29,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:19:29,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:19:29,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:19:29,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:19:29,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:19:29,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:19:29,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:19:29,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:19:29,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:19:29,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:19:29,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:19:29,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:19:29,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:19:29,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:19:29,900 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:19:29,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:19:29,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:19:29,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:19:29,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:19:29,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:19:29,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:19:29,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:19:29,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:19:29,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:19:29,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:19:29,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:19:29,904 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:19:29,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:19:29,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:19:29,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:19:29,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:19:29,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:19:29,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:19:29,906 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:19:30,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:19:30,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:19:30,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:19:30,195 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:19:30,196 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:19:30,197 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2020-07-07 13:19:30,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9a82993/f711409dbea04ad5a846a89db488e67b/FLAG1f4b552bc [2020-07-07 13:19:30,789 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:19:30,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2020-07-07 13:19:30,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9a82993/f711409dbea04ad5a846a89db488e67b/FLAG1f4b552bc [2020-07-07 13:19:31,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd9a82993/f711409dbea04ad5a846a89db488e67b [2020-07-07 13:19:31,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:19:31,140 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:19:31,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:19:31,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:19:31,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:19:31,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a34a3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31, skipping insertion in model container [2020-07-07 13:19:31,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:19:31,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:19:31,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:19:31,352 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:19:31,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:19:31,384 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:19:31,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31 WrapperNode [2020-07-07 13:19:31,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:19:31,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:19:31,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:19:31,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:19:31,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (1/1) ... [2020-07-07 13:19:31,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:19:31,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:19:31,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:19:31,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:19:31,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (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 [2020-07-07 13:19:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:19:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:19:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-07-07 13:19:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:19:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-07 13:19:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:19:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-07-07 13:19:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:19:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:19:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:19:31,759 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:19:31,759 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 13:19:31,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:19:31 BoogieIcfgContainer [2020-07-07 13:19:31,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:19:31,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:19:31,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:19:31,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:19:31,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:19:31" (1/3) ... [2020-07-07 13:19:31,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25dcce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:19:31, skipping insertion in model container [2020-07-07 13:19:31,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:19:31" (2/3) ... [2020-07-07 13:19:31,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25dcce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:19:31, skipping insertion in model container [2020-07-07 13:19:31,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:19:31" (3/3) ... [2020-07-07 13:19:31,772 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2020-07-07 13:19:31,786 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:19:31,793 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:19:31,804 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:19:31,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:19:31,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:19:31,828 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:19:31,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:19:31,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:19:31,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:19:31,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:19:31,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:19:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-07 13:19:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-07 13:19:31,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:19:31,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:19:31,856 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:19:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:19:31,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1061236160, now seen corresponding path program 1 times [2020-07-07 13:19:31,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:19:31,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367506820] [2020-07-07 13:19:31,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:19:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:19:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:19:32,009 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:19:32,010 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:19:32,011 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:19:32,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:19:32,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:19:32 BoogieIcfgContainer [2020-07-07 13:19:32,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:19:32,030 INFO L168 Benchmark]: Toolchain (without parser) took 889.45 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 156.1 MB in the end (delta: -54.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:19:32,031 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory is still 119.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:19:32,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.72 ms. Allocated memory is still 137.4 MB. Free memory was 101.0 MB in the beginning and 91.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:19:32,034 INFO L168 Benchmark]: Boogie Preprocessor took 30.03 ms. Allocated memory is still 137.4 MB. Free memory was 91.6 MB in the beginning and 90.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:19:32,035 INFO L168 Benchmark]: RCFGBuilder took 347.42 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.2 MB in the beginning and 169.8 MB in the end (delta: -79.6 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:19:32,036 INFO L168 Benchmark]: TraceAbstraction took 262.17 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 156.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:19:32,041 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory is still 119.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 239.72 ms. Allocated memory is still 137.4 MB. Free memory was 101.0 MB in the beginning and 91.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.03 ms. Allocated memory is still 137.4 MB. Free memory was 91.6 MB in the beginning and 90.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 347.42 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.2 MB in the beginning and 169.8 MB in the end (delta: -79.6 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262.17 ms. Allocated memory is still 201.3 MB. Free memory was 168.9 MB in the beginning and 156.1 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: - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int a = __VERIFIER_nondet_uint(); [L14] unsigned int b = __VERIFIER_nondet_uint(); [L15] CALL, EXPR sum(a, b) [L5] COND TRUE n == 0 [L6] return m; [L15] RET, EXPR sum(a, b) [L15] unsigned int result = sum(a, b); [L16] COND TRUE result == a + b [L17] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...