/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:06:51,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:06:51,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:06:51,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:06:51,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:06:51,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:06:51,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:06:51,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:06:51,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:06:51,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:06:51,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:06:51,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:06:51,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:06:51,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:06:51,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:06:51,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:06:51,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:06:51,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:06:51,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:06:51,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:06:51,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:06:51,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:06:51,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:06:51,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:06:51,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:06:51,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:06:51,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:06:51,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:06:51,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 16:06:52,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:06:52,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:06:52,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:06:52,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:06:52,007 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:06:52,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:06:52,008 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:06:52,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:06:52,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:06:52,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:06:52,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:06:52,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:06:52,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:06:52,009 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:06:52,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:06:52,010 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:06:52,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:06:52,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:06:52,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:06:52,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:06:52,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:06:52,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:06:52,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:06:52,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:06:52,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:06:52,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:06:52,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:06:52,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:06:52,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:06:52,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:06:52,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:06:52,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:06:52,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:06:52,448 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:06:52,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2021-02-21 16:06:52,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6dff7f9e/e2cc9d58f535466c9a13f12b0931a85a/FLAGbd684e64c [2021-02-21 16:06:53,253 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:06:53,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2021-02-21 16:06:53,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6dff7f9e/e2cc9d58f535466c9a13f12b0931a85a/FLAGbd684e64c [2021-02-21 16:06:53,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6dff7f9e/e2cc9d58f535466c9a13f12b0931a85a [2021-02-21 16:06:53,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:06:53,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:06:53,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:06:53,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:06:53,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:06:53,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281f6e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53, skipping insertion in model container [2021-02-21 16:06:53,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:06:53,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:06:53,854 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] [2021-02-21 16:06:53,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:06:53,868 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:06:53,885 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] [2021-02-21 16:06:53,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:06:53,903 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:06:53,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53 WrapperNode [2021-02-21 16:06:53,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:06:53,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:06:53,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:06:53,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:06:53,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (1/1) ... [2021-02-21 16:06:53,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:06:53,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:06:53,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:06:53,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:06:53,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (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 [2021-02-21 16:06:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:06:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:06:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:06:54,041 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-02-21 16:06:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:06:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-21 16:06:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:06:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:06:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:06:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:06:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-02-21 16:06:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:06:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:06:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:06:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:06:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:06:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:06:54,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:06:54,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:06:54,294 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 16:06:54,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:06:54 BoogieIcfgContainer [2021-02-21 16:06:54,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:06:54,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:06:54,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:06:54,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:06:54,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:06:53" (1/3) ... [2021-02-21 16:06:54,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b95891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:06:54, skipping insertion in model container [2021-02-21 16:06:54,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:06:53" (2/3) ... [2021-02-21 16:06:54,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b95891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:06:54, skipping insertion in model container [2021-02-21 16:06:54,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:06:54" (3/3) ... [2021-02-21 16:06:54,305 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2021-02-21 16:06:54,312 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:06:54,336 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:06:54,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:06:54,444 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:06:54,444 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:06:54,444 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:06:54,445 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:06:54,445 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:06:54,445 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:06:54,445 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:06:54,445 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:06:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2021-02-21 16:06:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-02-21 16:06:54,476 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:06:54,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:06:54,478 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:06:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:06:54,487 INFO L82 PathProgramCache]: Analyzing trace with hash -919656096, now seen corresponding path program 1 times [2021-02-21 16:06:54,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:06:54,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790713739] [2021-02-21 16:06:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:06:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:06:54,700 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:06:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 16:06:54,762 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 16:06:54,818 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 16:06:54,819 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 16:06:54,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:06:54,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:06:54 BoogieIcfgContainer [2021-02-21 16:06:54,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:06:54,878 INFO L168 Benchmark]: Toolchain (without parser) took 1235.87 ms. Allocated memory is still 156.2 MB. Free memory was 131.6 MB in the beginning and 126.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:06:54,881 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 128.6 MB in the beginning and 128.6 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:06:54,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.55 ms. Allocated memory is still 156.2 MB. Free memory was 130.4 MB in the beginning and 121.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 16:06:54,886 INFO L168 Benchmark]: Boogie Preprocessor took 33.58 ms. Allocated memory is still 156.2 MB. Free memory was 121.2 MB in the beginning and 119.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:06:54,887 INFO L168 Benchmark]: RCFGBuilder took 356.57 ms. Allocated memory is still 156.2 MB. Free memory was 119.9 MB in the beginning and 107.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 16:06:54,888 INFO L168 Benchmark]: TraceAbstraction took 576.01 ms. Allocated memory is still 156.2 MB. Free memory was 106.7 MB in the beginning and 126.4 MB in the end (delta: -19.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:06:54,899 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 156.2 MB. Free memory was 128.6 MB in the beginning and 128.6 MB in the end (delta: 81.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 253.55 ms. Allocated memory is still 156.2 MB. Free memory was 130.4 MB in the beginning and 121.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.58 ms. Allocated memory is still 156.2 MB. Free memory was 121.2 MB in the beginning and 119.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 356.57 ms. Allocated memory is still 156.2 MB. Free memory was 119.9 MB in the beginning and 107.1 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 576.01 ms. Allocated memory is still 156.2 MB. Free memory was 106.7 MB in the beginning and 126.4 MB in the end (delta: -19.8 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) VAL [\old(m)=0, \old(n)=0] [L7] COND TRUE n == 0 [L8] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L17] RET, EXPR sum(a, b) VAL [a=0, b=0, sum(a, b)=0] [L17] unsigned int result = sum(a, b); [L18] COND TRUE result == a + b VAL [a=0, b=0, result=0] [L19] reach_error() VAL [a=0, b=0, result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 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=21occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...