./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non.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_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/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_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/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_b4d19580-579e-4d50-81bf-f2d9e075ee8c/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 2355a4d05f76bd59f1e3cc71c2462258521b54a0 ................................................................................................................................................................................................................................................................................................................................................................... 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 02:34:34,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:34:34,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:34:34,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:34:34,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:34:34,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:34:34,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:34:34,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:34:34,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:34:34,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:34:34,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:34:34,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:34:34,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:34:34,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:34:34,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:34:34,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:34:34,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:34:34,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:34:34,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:34:34,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:34:34,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:34:34,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:34:34,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:34:34,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:34:34,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:34:34,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:34:34,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:34:34,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:34:34,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:34:34,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:34:34,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:34:34,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:34:34,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:34:34,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:34:34,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:34:34,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:34:34,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:34:34,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:34:34,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:34:34,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:34:34,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:34:34,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:34:34,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:34:34,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:34:34,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:34:34,392 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:34:34,392 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:34:34,392 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:34:34,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:34:34,393 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:34:34,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:34:34,400 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:34:34,401 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:34:34,402 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:34:34,402 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:34:34,402 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:34:34,402 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:34:34,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:34:34,403 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:34:34,404 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:34:34,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:34:34,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:34:34,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:34:34,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:34:34,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:34:34,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:34:34,405 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:34:34,405 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:34:34,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:34:34,406 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:34:34,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:34:34,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:34:34,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:34:34,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:34:34,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:34:34,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:34:34,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:34:34,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:34:34,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:34:34,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:34:34,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:34:34,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:34:34,411 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_b4d19580-579e-4d50-81bf-f2d9e075ee8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2355a4d05f76bd59f1e3cc71c2462258521b54a0 [2021-10-16 02:34:34,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:34:34,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:34:34,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:34:34,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:34:34,759 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:34:34,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/recursive-simple/sum_non.c [2021-10-16 02:34:34,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/data/cb10d0516/1e2af2156935479c8701dbaba224dade/FLAG972a2045e [2021-10-16 02:34:35,378 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:34:35,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/sv-benchmarks/c/recursive-simple/sum_non.c [2021-10-16 02:34:35,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/data/cb10d0516/1e2af2156935479c8701dbaba224dade/FLAG972a2045e [2021-10-16 02:34:35,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/data/cb10d0516/1e2af2156935479c8701dbaba224dade [2021-10-16 02:34:35,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:34:35,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:34:35,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:34:35,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:34:35,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:34:35,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:34:35" (1/1) ... [2021-10-16 02:34:35,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fff8de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:35, skipping insertion in model container [2021-10-16 02:34:35,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:34:35" (1/1) ... [2021-10-16 02:34:35,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:34:35,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:34:35,998 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_b4d19580-579e-4d50-81bf-f2d9e075ee8c/sv-benchmarks/c/recursive-simple/sum_non.c[561,574] [2021-10-16 02:34:35,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:34:36,010 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:34:36,027 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_b4d19580-579e-4d50-81bf-f2d9e075ee8c/sv-benchmarks/c/recursive-simple/sum_non.c[561,574] [2021-10-16 02:34:36,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:34:36,043 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:34:36,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36 WrapperNode [2021-10-16 02:34:36,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:34:36,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:34:36,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:34:36,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:34:36,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:34:36,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:34:36,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:34:36,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:34:36,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:34:36,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:34:36,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:34:36,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:34:36,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (1/1) ... [2021-10-16 02:34:36,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:34:36,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:34:36,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:34:36,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:34:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:34:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:34:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-16 02:34:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-16 02:34:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:34:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:34:36,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:34:36,576 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 02:34:36,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:34:36 BoogieIcfgContainer [2021-10-16 02:34:36,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:34:36,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:34:36,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:34:36,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:34:36,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:34:35" (1/3) ... [2021-10-16 02:34:36,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a0950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:34:36, skipping insertion in model container [2021-10-16 02:34:36,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:34:36" (2/3) ... [2021-10-16 02:34:36,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331a0950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:34:36, skipping insertion in model container [2021-10-16 02:34:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:34:36" (3/3) ... [2021-10-16 02:34:36,598 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non.c [2021-10-16 02:34:36,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:34:36,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-16 02:34:36,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:34:36,665 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 02:34:36,665 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-16 02:34:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 22 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-16 02:34:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:34:36,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:34:36,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:34:36,690 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 02:34:36,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:34:36,696 INFO L82 PathProgramCache]: Analyzing trace with hash 69521367, now seen corresponding path program 1 times [2021-10-16 02:34:36,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:34:36,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49863667] [2021-10-16 02:34:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:34:36,709 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:34:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:34:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:34:36,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:34:36,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49863667] [2021-10-16 02:34:36,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49863667] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:34:36,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:34:36,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:34:36,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113756316] [2021-10-16 02:34:36,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:34:36,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:34:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:34:36,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:34:36,958 INFO L87 Difference]: Start difference. First operand has 26 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 22 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:34:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:34:37,123 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-10-16 02:34:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 02:34:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:34:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:34:37,137 INFO L225 Difference]: With dead ends: 48 [2021-10-16 02:34:37,137 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 02:34:37,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.7ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:34:37,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 02:34:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2021-10-16 02:34:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 31 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-16 02:34:37,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-10-16 02:34:37,190 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 5 [2021-10-16 02:34:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:34:37,190 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-16 02:34:37,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:34:37,191 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-10-16 02:34:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:34:37,192 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:34:37,192 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:34:37,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:34:37,193 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 02:34:37,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:34:37,194 INFO L82 PathProgramCache]: Analyzing trace with hash 69521527, now seen corresponding path program 1 times [2021-10-16 02:34:37,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:34:37,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029048277] [2021-10-16 02:34:37,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:34:37,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:34:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:34:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:34:37,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:34:37,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029048277] [2021-10-16 02:34:37,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029048277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:34:37,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:34:37,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:34:37,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242954260] [2021-10-16 02:34:37,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:34:37,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:34:37,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:34:37,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:34:37,258 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:34:37,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:34:37,311 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-10-16 02:34:37,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:34:37,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:34:37,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:34:37,314 INFO L225 Difference]: With dead ends: 37 [2021-10-16 02:34:37,314 INFO L226 Difference]: Without dead ends: 36 [2021-10-16 02:34:37,315 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:34:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-16 02:34:37,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-16 02:34:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.5) internal successors, (36), 30 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-16 02:34:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-10-16 02:34:37,324 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 5 [2021-10-16 02:34:37,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:34:37,325 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-10-16 02:34:37,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:34:37,326 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-10-16 02:34:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:34:37,326 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:34:37,326 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:34:37,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:34:37,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 02:34:37,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:34:37,328 INFO L82 PathProgramCache]: Analyzing trace with hash -2139804863, now seen corresponding path program 1 times [2021-10-16 02:34:37,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:34:37,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128331445] [2021-10-16 02:34:37,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:34:37,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:34:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:34:37,352 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:34:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:34:37,389 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:34:37,390 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:34:37,391 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,393 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,394 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,395 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,396 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:34:37,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:34:37,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:34:37,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:34:37 BoogieIcfgContainer [2021-10-16 02:34:37,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:34:37,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:34:37,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:34:37,429 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:34:37,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:34:36" (3/4) ... [2021-10-16 02:34:37,432 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:34:37,471 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:34:37,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:34:37,474 INFO L168 Benchmark]: Toolchain (without parser) took 1734.80 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 58.3 MB in the beginning and 88.7 MB in the end (delta: -30.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:34:37,475 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 63.9 MB in the beginning and 63.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:34:37,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.01 ms. Allocated memory is still 92.3 MB. Free memory was 58.3 MB in the beginning and 69.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:34:37,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:34:37,477 INFO L168 Benchmark]: Boogie Preprocessor took 20.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 67.1 MB in the end (delta: 868.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:34:37,478 INFO L168 Benchmark]: RCFGBuilder took 476.83 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 55.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:34:37,479 INFO L168 Benchmark]: TraceAbstraction took 846.33 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 55.1 MB in the beginning and 90.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:34:37,480 INFO L168 Benchmark]: Witness Printer took 43.49 ms. Allocated memory is still 127.9 MB. Free memory was 90.2 MB in the beginning and 88.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:34:37,484 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 92.3 MB. Free memory was 63.9 MB in the beginning and 63.8 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.01 ms. Allocated memory is still 92.3 MB. Free memory was 58.3 MB in the beginning and 69.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 92.3 MB. Free memory was 69.3 MB in the beginning and 68.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 67.1 MB in the end (delta: 868.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 476.83 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 55.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 846.33 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 55.1 MB in the beginning and 90.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Witness Printer took 43.49 ms. Allocated memory is still 127.9 MB. Free memory was 90.2 MB in the beginning and 88.7 MB in the end (delta: 1.5 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: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int(); [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=-1, \old(n)=-2147483648] [L7] COND TRUE n <= 0 VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] [L8] m + n VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 10]: 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, 26 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 746.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 10.0ms, AutomataDifference: 259.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 83 SDslu, 58 SDs, 0 SdLazy, 103 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 116.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 64.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.3ms SsaConstructionTime, 67.4ms SatisfiabilityAnalysisTime, 142.1ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 02:34:37,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4d19580-579e-4d50-81bf-f2d9e075ee8c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...