/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 0.2.1-dev-36cd7be [2021-02-23 17:58:02,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:58:02,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:58:02,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 17:58:02,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 17:58:02,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 17:58:02,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 17:58:02,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 17:58:02,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 17:58:02,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 17:58:02,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 17:58:02,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 17:58:02,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:58:02,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:58:02,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:58:02,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:58:02,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:58:02,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:58:02,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:58:02,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:58:02,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:58:02,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:58:02,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:58:02,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:58:02,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:58:02,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:58:02,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:58:02,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:58:02,696 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 17:58:02,719 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:58:02,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:58:02,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:58:02,726 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:58:02,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:58:02,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:58:02,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:58:02,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:58:02,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:58:02,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:58:02,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:58:02,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:58:02,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:58:02,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:58:02,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:58:02,729 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:58:02,729 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:58:02,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:58:02,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:58:02,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:58:02,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:58:02,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:58:02,730 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:58:03,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:58:03,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:58:03,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:58:03,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:58:03,208 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:58:03,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2021-02-23 17:58:03,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69e0e494c/cfc2a4ab7af84053803ad5f8a17f964e/FLAG3d3cff74a [2021-02-23 17:58:04,167 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:58:04,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2021-02-23 17:58:04,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69e0e494c/cfc2a4ab7af84053803ad5f8a17f964e/FLAG3d3cff74a [2021-02-23 17:58:04,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69e0e494c/cfc2a4ab7af84053803ad5f8a17f964e [2021-02-23 17:58:04,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:58:04,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:58:04,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:58:04,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:58:04,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:58:04,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79977568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04, skipping insertion in model container [2021-02-23 17:58:04,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:58:04,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:58:04,739 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c[628,641] [2021-02-23 17:58:04,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:58:04,761 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:58:04,780 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c[628,641] [2021-02-23 17:58:04,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:58:04,800 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:58:04,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04 WrapperNode [2021-02-23 17:58:04,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:58:04,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:58:04,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:58:04,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:58:04,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (1/1) ... [2021-02-23 17:58:04,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:58:04,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:58:04,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:58:04,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:58:04,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (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 [2021-02-23 17:58:04,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:58:04,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:58:04,955 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:58:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-02-23 17:58:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:58:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-23 17:58:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:58:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:58:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:58:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:58:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-02-23 17:58:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:58:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:58:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:58:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:58:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:58:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:58:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:58:05,350 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:58:05,351 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 17:58:05,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:58:05 BoogieIcfgContainer [2021-02-23 17:58:05,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:58:05,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:58:05,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:58:05,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:58:05,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:58:04" (1/3) ... [2021-02-23 17:58:05,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204d13da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:58:05, skipping insertion in model container [2021-02-23 17:58:05,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:58:04" (2/3) ... [2021-02-23 17:58:05,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@204d13da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:58:05, skipping insertion in model container [2021-02-23 17:58:05,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:58:05" (3/3) ... [2021-02-23 17:58:05,366 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2021-02-23 17:58:05,386 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:58:05,400 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:58:05,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:58:05,603 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:58:05,603 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:58:05,603 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:58:05,604 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:58:05,604 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:58:05,604 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:58:05,604 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:58:05,604 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:58:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-02-23 17:58:05,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-23 17:58:05,647 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:58:05,649 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] [2021-02-23 17:58:05,649 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:58:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:58:05,657 INFO L82 PathProgramCache]: Analyzing trace with hash 546170876, now seen corresponding path program 1 times [2021-02-23 17:58:05,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:58:05,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [62867560] [2021-02-23 17:58:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:58:05,777 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:58:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:58:05,896 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:58:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 17:58:05,932 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 17:58:05,969 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 17:58:05,970 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 17:58:05,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:58:05,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:58:05 BoogieIcfgContainer [2021-02-23 17:58:05,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:58:05,996 INFO L168 Benchmark]: Toolchain (without parser) took 1491.93 ms. Allocated memory is still 166.7 MB. Free memory was 143.1 MB in the beginning and 138.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2021-02-23 17:58:05,997 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 166.7 MB. Free memory is still 139.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:58:05,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.93 ms. Allocated memory is still 166.7 MB. Free memory was 142.0 MB in the beginning and 132.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:58:05,999 INFO L168 Benchmark]: Boogie Preprocessor took 38.85 ms. Allocated memory is still 166.7 MB. Free memory was 132.7 MB in the beginning and 131.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 17:58:06,000 INFO L168 Benchmark]: RCFGBuilder took 511.36 ms. Allocated memory is still 166.7 MB. Free memory was 131.4 MB in the beginning and 117.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 17:58:06,001 INFO L168 Benchmark]: TraceAbstraction took 635.89 ms. Allocated memory is still 166.7 MB. Free memory was 117.2 MB in the beginning and 138.0 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:58:06,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 166.7 MB. Free memory is still 139.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 283.93 ms. Allocated memory is still 166.7 MB. Free memory was 142.0 MB in the beginning and 132.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.85 ms. Allocated memory is still 166.7 MB. Free memory was 132.7 MB in the beginning and 131.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 511.36 ms. Allocated memory is still 166.7 MB. Free memory was 131.4 MB in the beginning and 117.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 635.89 ms. Allocated memory is still 166.7 MB. Free memory was 117.2 MB in the beginning and 138.0 MB in the end (delta: -20.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int a = __VERIFIER_nondet_uint(); [L16] unsigned int b = __VERIFIER_nondet_uint(); [L17] CALL, EXPR sum(a, b) [L7] COND TRUE n == 0 [L8] return m; [L17] RET, EXPR sum(a, b) [L17] unsigned int result = sum(a, b); [L18] COND TRUE result == a + b [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=36occurred 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...