./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition03-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition03-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0d1a1884709d780707fce221b346fe4b8122630 ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:54:51,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:54:51,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:54:51,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:54:51,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:54:51,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:54:51,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:54:51,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:54:51,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:54:51,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:54:51,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:54:51,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:54:51,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:54:51,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:54:51,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:54:51,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:54:51,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:54:51,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:54:51,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:54:51,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:54:51,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:54:51,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:54:51,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:54:51,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:54:51,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:54:51,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:54:51,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:54:51,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:54:51,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:54:51,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:54:51,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:54:51,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:54:51,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:54:51,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:54:51,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:54:51,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:54:51,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:54:51,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:54:51,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:54:51,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:54:51,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:54:51,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:54:51,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:54:51,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:54:51,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:54:51,353 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:54:51,353 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:54:51,354 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:54:51,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:54:51,354 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:54:51,361 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:54:51,361 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:54:51,362 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:54:51,363 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:54:51,363 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:54:51,363 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:54:51,363 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:54:51,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:54:51,364 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:54:51,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:54:51,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:54:51,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:54:51,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:54:51,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:54:51,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:54:51,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:54:51,366 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:54:51,366 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:54:51,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:54:51,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:54:51,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:54:51,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:54:51,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:54:51,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:54:51,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:54:51,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:54:51,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:54:51,369 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:54:51,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:54:51,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:54:51,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:54:51,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:54:51,370 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0d1a1884709d780707fce221b346fe4b8122630 [2021-10-16 02:54:51,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:54:51,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:54:51,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:54:51,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:54:51,671 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:54:51,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/recursive/Addition03-2.c [2021-10-16 02:54:51,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/data/e32b8c215/3c0ed7b3f2fd46c891099e838eaa4eb9/FLAG45c9ac35e [2021-10-16 02:54:52,280 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:54:52,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/sv-benchmarks/c/recursive/Addition03-2.c [2021-10-16 02:54:52,291 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/data/e32b8c215/3c0ed7b3f2fd46c891099e838eaa4eb9/FLAG45c9ac35e [2021-10-16 02:54:52,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/data/e32b8c215/3c0ed7b3f2fd46c891099e838eaa4eb9 [2021-10-16 02:54:52,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:54:52,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:54:52,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:52,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:54:52,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:54:52,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:52,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1cfa61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52, skipping insertion in model container [2021-10-16 02:54:52,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:52,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:54:52,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:54:52,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/sv-benchmarks/c/recursive/Addition03-2.c[816,829] [2021-10-16 02:54:52,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:52,936 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:54:52,959 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/sv-benchmarks/c/recursive/Addition03-2.c[816,829] [2021-10-16 02:54:52,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:52,980 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:54:52,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52 WrapperNode [2021-10-16 02:54:52,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:52,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:54:52,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:54:52,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:54:52,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:54:53,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:54:53,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:54:53,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:54:53,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:54:53,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:54:53,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:54:53,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:54:53,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (1/1) ... [2021-10-16 02:54:53,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:54:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:54:53,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:54:53,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:54:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:54:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:54:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:54:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:54:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-10-16 02:54:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-10-16 02:54:53,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:54:53,487 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 02:54:53,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:53 BoogieIcfgContainer [2021-10-16 02:54:53,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:54:53,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:54:53,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:54:53,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:54:53,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:54:52" (1/3) ... [2021-10-16 02:54:53,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ad2bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:54:53, skipping insertion in model container [2021-10-16 02:54:53,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:52" (2/3) ... [2021-10-16 02:54:53,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ad2bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:54:53, skipping insertion in model container [2021-10-16 02:54:53,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:53" (3/3) ... [2021-10-16 02:54:53,499 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-2.c [2021-10-16 02:54:53,504 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:54:53,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-16 02:54:53,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:54:53,558 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:54:53,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-16 02:54:53,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-16 02:54:53,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:54:53,581 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:53,582 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:54:53,583 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 02:54:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:53,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1787141952, now seen corresponding path program 1 times [2021-10-16 02:54:53,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:54:53,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282328317] [2021-10-16 02:54:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:53,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:54:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:54:53,757 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:54:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:54:53,824 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:54:53,827 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:54:53,828 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:54:53,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:54:53,844 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:54:53,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:54:53 BoogieIcfgContainer [2021-10-16 02:54:53,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:54:53,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:54:53,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:54:53,875 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:54:53,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:53" (3/4) ... [2021-10-16 02:54:53,878 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:54:53,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:54:53,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:54:53,932 INFO L168 Benchmark]: Toolchain (without parser) took 1273.52 ms. Allocated memory is still 94.4 MB. Free memory was 52.6 MB in the beginning and 38.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,933 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 94.4 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:54:53,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.60 ms. Allocated memory is still 94.4 MB. Free memory was 52.4 MB in the beginning and 68.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.16 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 67.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,940 INFO L168 Benchmark]: Boogie Preprocessor took 43.58 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 66.1 MB in the end (delta: 770.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,941 INFO L168 Benchmark]: RCFGBuilder took 425.09 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 54.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,942 INFO L168 Benchmark]: TraceAbstraction took 379.29 ms. Allocated memory is still 94.4 MB. Free memory was 53.5 MB in the beginning and 39.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,943 INFO L168 Benchmark]: Witness Printer took 55.43 ms. Allocated memory is still 94.4 MB. Free memory was 39.9 MB in the beginning and 38.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:53,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 94.4 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.60 ms. Allocated memory is still 94.4 MB. Free memory was 52.4 MB in the beginning and 68.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.16 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 67.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.58 ms. Allocated memory is still 94.4 MB. Free memory was 66.9 MB in the beginning and 66.1 MB in the end (delta: 770.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.09 ms. Allocated memory is still 94.4 MB. Free memory was 66.1 MB in the beginning and 54.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 379.29 ms. Allocated memory is still 94.4 MB. Free memory was 53.5 MB in the beginning and 39.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 55.43 ms. Allocated memory is still 94.4 MB. Free memory was 39.9 MB in the beginning and 38.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] CALL addition(m,n) VAL [\old(m)=2147483647, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L20] m+1 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 292.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.4ms SsaConstructionTime, 54.8ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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! [2021-10-16 02:54:53,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a6614f3-fd57-4a55-ae4e-8491caa381d1/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...