/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 0.2.0-7d8eed3 [2020-11-06 22:24:27,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:24:27,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:24:27,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 22:24:27,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 22:24:27,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 22:24:27,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 22:24:27,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 22:24:27,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 22:24:27,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 22:24:27,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 22:24:27,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 22:24:27,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:24:27,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:24:27,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:24:27,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:24:27,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:24:27,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:24:27,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:24:27,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:24:27,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:24:27,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:24:27,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:24:27,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:24:27,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:24:27,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:24:27,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:24:27,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:24:27,796 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 [2020-11-06 22:24:27,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:24:27,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:24:27,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:24:27,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:24:27,862 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:24:27,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:24:27,862 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:24:27,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:24:27,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:24:27,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:24:27,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:24:27,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:24:27,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:24:27,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:24:27,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:24:27,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:24:27,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:24:27,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:24:27,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:24:27,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:24:27,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:24:27,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:24:27,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:24:27,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:24:27,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:24:27,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:24:27,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:24:27,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:24:27,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:24:27,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:24:28,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:24:28,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:24:28,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:24:28,335 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:24:28,336 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:24:28,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2020-11-06 22:24:28,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8674823f5/d1691a7e1b5044568bcc8df8c3e85bf0/FLAG76a280fd1 [2020-11-06 22:24:29,077 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:24:29,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2020-11-06 22:24:29,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8674823f5/d1691a7e1b5044568bcc8df8c3e85bf0/FLAG76a280fd1 [2020-11-06 22:24:29,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8674823f5/d1691a7e1b5044568bcc8df8c3e85bf0 [2020-11-06 22:24:29,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:24:29,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:24:29,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:24:29,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:24:29,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:24:29,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1be157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29, skipping insertion in model container [2020-11-06 22:24:29,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:24:29,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:24:29,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:24:29,747 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:24:29,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:24:29,783 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:24:29,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29 WrapperNode [2020-11-06 22:24:29,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:24:29,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:24:29,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:24:29,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:24:29,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (1/1) ... [2020-11-06 22:24:29,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:24:29,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:24:29,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:24:29,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:24:29,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (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 [2020-11-06 22:24:29,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:24:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:24:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:24:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-06 22:24:29,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:24:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-06 22:24:29,904 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:24:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:24:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:24:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:24:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-06 22:24:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:24:29,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:24:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:24:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:24:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:24:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:24:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:24:30,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:24:30,162 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 22:24:30,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:30 BoogieIcfgContainer [2020-11-06 22:24:30,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:24:30,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:24:30,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:24:30,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:24:30,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:29" (1/3) ... [2020-11-06 22:24:30,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59132ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:30, skipping insertion in model container [2020-11-06 22:24:30,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:29" (2/3) ... [2020-11-06 22:24:30,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59132ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:30, skipping insertion in model container [2020-11-06 22:24:30,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:30" (3/3) ... [2020-11-06 22:24:30,178 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2020-11-06 22:24:30,196 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:24:30,229 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:24:30,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:24:30,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:24:30,315 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:24:30,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:24:30,316 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:24:30,316 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:24:30,316 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:24:30,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:24:30,316 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:24:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-06 22:24:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-06 22:24:30,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:24:30,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:24:30,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:24:30,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:24:30,354 INFO L82 PathProgramCache]: Analyzing trace with hash 931449939, now seen corresponding path program 1 times [2020-11-06 22:24:30,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:24:30,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93588000] [2020-11-06 22:24:30,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:24:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:24:30,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:24:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 22:24:30,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 22:24:30,754 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 22:24:30,755 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 22:24:30,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:24:30,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:24:30 BoogieIcfgContainer [2020-11-06 22:24:30,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:24:30,822 INFO L168 Benchmark]: Toolchain (without parser) took 1368.08 ms. Allocated memory is still 152.0 MB. Free memory was 127.7 MB in the beginning and 123.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:24:30,825 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:24:30,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.81 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 118.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-06 22:24:30,831 INFO L168 Benchmark]: Boogie Preprocessor took 35.87 ms. Allocated memory is still 152.0 MB. Free memory was 118.0 MB in the beginning and 116.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 22:24:30,832 INFO L168 Benchmark]: RCFGBuilder took 341.60 ms. Allocated memory is still 152.0 MB. Free memory was 116.5 MB in the beginning and 104.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-11-06 22:24:30,834 INFO L168 Benchmark]: TraceAbstraction took 645.86 ms. Allocated memory is still 152.0 MB. Free memory was 103.6 MB in the beginning and 123.8 MB in the end (delta: -20.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:24:30,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 321.81 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 118.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.87 ms. Allocated memory is still 152.0 MB. Free memory was 118.0 MB in the beginning and 116.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 341.60 ms. Allocated memory is still 152.0 MB. Free memory was 116.5 MB in the beginning and 104.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 645.86 ms. Allocated memory is still 152.0 MB. Free memory was 103.6 MB in the beginning and 123.8 MB in the end (delta: -20.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_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] CALL reach_error() [L4] __assert_fail("0", "sum_non_eq-3.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=25occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 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...