./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i --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_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/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_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/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_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/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 d74be85e157db5a333b620e4febf366c094179ee ............................................................................................................................................................................................................................................................................................................. 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 02:13:41,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:13:41,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:13:41,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:13:41,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:13:41,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:13:41,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:13:41,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:13:41,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:13:41,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:13:41,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:13:41,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:13:41,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:13:41,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:13:41,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:13:41,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:13:41,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:13:41,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:13:41,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:13:41,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:13:41,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:13:41,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:13:41,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:13:41,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:13:41,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:13:41,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:13:41,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:13:41,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:13:41,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:13:41,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:13:41,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:13:41,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:13:41,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:13:41,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:13:41,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:13:41,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:13:41,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:13:41,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:13:41,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:13:41,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:13:41,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:13:41,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:13:41,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:13:41,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:13:41,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:13:41,576 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:13:41,577 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:13:41,577 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:13:41,577 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:13:41,577 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:13:41,578 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:13:41,578 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:13:41,579 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:13:41,580 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:13:41,580 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:13:41,580 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:13:41,580 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:13:41,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:13:41,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:13:41,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:13:41,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:13:41,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:13:41,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:13:41,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:13:41,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:13:41,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:13:41,584 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:13:41,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:13:41,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:13:41,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:13:41,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:13:41,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:13:41,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:13:41,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:41,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:13:41,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:13:41,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:13:41,589 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:13:41,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:13:41,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:13:41,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:13:41,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:13:41,590 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_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d74be85e157db5a333b620e4febf366c094179ee [2021-10-16 02:13:41,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:13:41,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:13:41,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:13:41,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:13:41,954 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:13:41,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2021-10-16 02:13:42,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/data/e6711205f/afdb9027327b426b8105d1c775abf8cf/FLAGff64f04bf [2021-10-16 02:13:42,572 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:13:42,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2021-10-16 02:13:42,580 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/data/e6711205f/afdb9027327b426b8105d1c775abf8cf/FLAGff64f04bf [2021-10-16 02:13:42,892 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/data/e6711205f/afdb9027327b426b8105d1c775abf8cf [2021-10-16 02:13:42,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:13:42,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:13:42,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:42,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:13:42,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:13:42,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:42" (1/1) ... [2021-10-16 02:13:42,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43925e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:42, skipping insertion in model container [2021-10-16 02:13:42,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:42" (1/1) ... [2021-10-16 02:13:42,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:13:42,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:13:43,183 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_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2021-10-16 02:13:43,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:43,212 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:13:43,237 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_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2021-10-16 02:13:43,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:43,267 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:13:43,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43 WrapperNode [2021-10-16 02:13:43,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:43,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:13:43,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:13:43,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:13:43,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:13:43,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:13:43,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:13:43,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:13:43,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:13:43,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:13:43,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:13:43,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:13:43,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (1/1) ... [2021-10-16 02:13:43,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:43,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:13:43,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:13:43,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:13:43,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:13:43,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:13:43,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:13:43,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:13:43,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:13:43,868 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:13:43,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:43 BoogieIcfgContainer [2021-10-16 02:13:43,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:13:43,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:13:43,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:13:43,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:13:43,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:13:42" (1/3) ... [2021-10-16 02:13:43,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37fbf954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:13:43, skipping insertion in model container [2021-10-16 02:13:43,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:43" (2/3) ... [2021-10-16 02:13:43,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37fbf954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:13:43, skipping insertion in model container [2021-10-16 02:13:43,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:43" (3/3) ... [2021-10-16 02:13:43,910 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark27_linear.i [2021-10-16 02:13:43,918 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:13:43,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:13:43,991 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:13:44,004 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 02:13:44,004 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:13:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:13:44,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:44,035 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:13:44,035 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:13:44,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:44,043 INFO L82 PathProgramCache]: Analyzing trace with hash 77041, now seen corresponding path program 1 times [2021-10-16 02:13:44,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:44,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578430891] [2021-10-16 02:13:44,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:44,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:44,306 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 02:13:44,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:44,307 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578430891] [2021-10-16 02:13:44,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578430891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:44,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:44,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:44,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579797039] [2021-10-16 02:13:44,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:44,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:44,338 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:44,411 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-10-16 02:13:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:44,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-16 02:13:44,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:44,423 INFO L225 Difference]: With dead ends: 24 [2021-10-16 02:13:44,423 INFO L226 Difference]: Without dead ends: 17 [2021-10-16 02:13:44,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:44,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-16 02:13:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-10-16 02:13:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.6) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-10-16 02:13:44,461 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 3 [2021-10-16 02:13:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:44,461 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-10-16 02:13:44,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:44,462 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-10-16 02:13:44,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:13:44,462 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:44,462 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:13:44,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:13:44,463 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-16 02:13:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2388310, now seen corresponding path program 1 times [2021-10-16 02:13:44,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:44,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465948998] [2021-10-16 02:13:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:44,466 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:13:44,489 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:13:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:13:44,536 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:13:44,536 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:13:44,538 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:44,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:44,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:44,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:44,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:44,549 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:44,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:13:44,558 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:13:44,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:13:44 BoogieIcfgContainer [2021-10-16 02:13:44,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:13:44,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:13:44,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:13:44,587 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:13:44,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:43" (3/4) ... [2021-10-16 02:13:44,591 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:13:44,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:13:44,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:13:44,635 INFO L168 Benchmark]: Toolchain (without parser) took 1733.07 ms. Allocated memory is still 117.4 MB. Free memory was 77.3 MB in the beginning and 51.5 MB in the end (delta: 25.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:44,636 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 93.5 MB in the end (delta: 51.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:13:44,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.10 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 91.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:44,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.91 ms. Allocated memory is still 117.4 MB. Free memory was 91.6 MB in the beginning and 90.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:44,639 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 117.4 MB. Free memory was 90.0 MB in the beginning and 89.3 MB in the end (delta: 693.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:13:44,640 INFO L168 Benchmark]: RCFGBuilder took 521.21 ms. Allocated memory is still 117.4 MB. Free memory was 88.9 MB in the beginning and 77.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:44,640 INFO L168 Benchmark]: TraceAbstraction took 698.40 ms. Allocated memory is still 117.4 MB. Free memory was 77.2 MB in the beginning and 53.0 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:44,641 INFO L168 Benchmark]: Witness Printer took 46.47 ms. Allocated memory is still 117.4 MB. Free memory was 53.0 MB in the beginning and 51.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:13:44,645 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 117.4 MB. Free memory was 93.6 MB in the beginning and 93.5 MB in the end (delta: 51.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.10 ms. Allocated memory is still 117.4 MB. Free memory was 77.1 MB in the beginning and 91.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.91 ms. Allocated memory is still 117.4 MB. Free memory was 91.6 MB in the beginning and 90.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.15 ms. Allocated memory is still 117.4 MB. Free memory was 90.0 MB in the beginning and 89.3 MB in the end (delta: 693.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 521.21 ms. Allocated memory is still 117.4 MB. Free memory was 88.9 MB in the beginning and 77.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 698.40 ms. Allocated memory is still 117.4 MB. Free memory was 77.2 MB in the beginning and 53.0 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 46.47 ms. Allocated memory is still 117.4 MB. Free memory was 53.0 MB in the beginning and 51.5 MB in the end (delta: 1.4 MB). There was no memory consumed. 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: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] ii-j [L23] i-j - 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: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: 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 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 566.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.1ms, AutomataDifference: 107.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 15 SDslu, 2 SDs, 0 SdLazy, 20 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 37.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.2ms SsaConstructionTime, 60.3ms SatisfiabilityAnalysisTime, 101.4ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 02:13:44,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a8ef0b3-81a5-4b98-915a-fb2c9cf4491c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...