./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark49_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_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/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_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark49_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/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_4b1755ca-ba26-4634-b744-4f2d9d78a98b/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 d4750ef406c6be6dd372634c19ba1f6982641bf4 ........................................................................................................................................................................................................................................................................... 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 02:30:44,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:44,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:44,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:44,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:44,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:44,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:44,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:44,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:44,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:44,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:44,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:44,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:44,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:44,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:44,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:44,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:44,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:44,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:44,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:44,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:44,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:44,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:44,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:44,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:44,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:44,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:44,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:44,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:44,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:44,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:44,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:44,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:44,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:44,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:44,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:44,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:44,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:44,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:44,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:44,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:44,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:30:44,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:44,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:44,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:44,944 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:44,944 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:44,944 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:44,945 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:30:44,945 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:44,945 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:44,945 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:30:44,946 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:30:44,946 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:44,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:30:44,946 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:30:44,947 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:30:44,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:44,948 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:44,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:30:44,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:30:44,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:44,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:44,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:30:44,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:44,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:30:44,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:30:44,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:44,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:30:44,950 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:44,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:30:44,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:44,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:44,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:44,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:44,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:44,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:30:44,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:30:44,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:30:44,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:30:44,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:44,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:44,953 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_4b1755ca-ba26-4634-b744-4f2d9d78a98b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4750ef406c6be6dd372634c19ba1f6982641bf4 [2021-10-16 02:30:45,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:45,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:45,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:45,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:45,242 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:45,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loop-zilu/benchmark49_linear.i [2021-10-16 02:30:45,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/data/1ead1b9a5/d887b6472304416195715e131fb3b037/FLAG96846b0c3 [2021-10-16 02:30:45,813 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:45,813 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/sv-benchmarks/c/loop-zilu/benchmark49_linear.i [2021-10-16 02:30:45,826 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/data/1ead1b9a5/d887b6472304416195715e131fb3b037/FLAG96846b0c3 [2021-10-16 02:30:46,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/data/1ead1b9a5/d887b6472304416195715e131fb3b037 [2021-10-16 02:30:46,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:46,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:46,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:46,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:46,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:46,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451dd842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46, skipping insertion in model container [2021-10-16 02:30:46,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:46,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:46,388 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_4b1755ca-ba26-4634-b744-4f2d9d78a98b/sv-benchmarks/c/loop-zilu/benchmark49_linear.i[868,881] [2021-10-16 02:30:46,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:46,418 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:30:46,431 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_4b1755ca-ba26-4634-b744-4f2d9d78a98b/sv-benchmarks/c/loop-zilu/benchmark49_linear.i[868,881] [2021-10-16 02:30:46,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:46,449 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:30:46,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46 WrapperNode [2021-10-16 02:30:46,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:46,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:46,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:30:46,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:30:46,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:46,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:30:46,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:30:46,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:30:46,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:30:46,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:30:46,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:30:46,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:30:46,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (1/1) ... [2021-10-16 02:30:46,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:46,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:30:46,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:30:46,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:30:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:30:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:30:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:30:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:30:46,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:30:46,965 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:30:46,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:46 BoogieIcfgContainer [2021-10-16 02:30:46,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:30:46,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:30:46,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:30:46,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:30:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:46" (1/3) ... [2021-10-16 02:30:46,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607b9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:46, skipping insertion in model container [2021-10-16 02:30:46,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:46" (2/3) ... [2021-10-16 02:30:46,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607b9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:46, skipping insertion in model container [2021-10-16 02:30:46,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:46" (3/3) ... [2021-10-16 02:30:46,999 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark49_linear.i [2021-10-16 02:30:47,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:30:47,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-16 02:30:47,107 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:30:47,126 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 02:30:47,126 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-16 02:30:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 20 states have internal predecessors, (22), 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 02:30:47,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-16 02:30:47,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:47,155 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-16 02:30:47,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 02:30:47,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:47,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2390, now seen corresponding path program 1 times [2021-10-16 02:30:47,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:30:47,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338763114] [2021-10-16 02:30:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:47,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:30:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:30:47,277 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:30:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:30:47,317 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:30:47,320 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:30:47,321 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:30:47,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:30:47,337 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:30:47,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:30:47 BoogieIcfgContainer [2021-10-16 02:30:47,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:30:47,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:30:47,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:30:47,357 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:30:47,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:46" (3/4) ... [2021-10-16 02:30:47,361 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:30:47,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:30:47,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:30:47,403 INFO L168 Benchmark]: Toolchain (without parser) took 1231.52 ms. Allocated memory is still 117.4 MB. Free memory was 77.9 MB in the beginning and 63.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,403 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 117.4 MB. Free memory is still 94.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:47,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.70 ms. Allocated memory is still 117.4 MB. Free memory was 77.6 MB in the beginning and 92.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.30 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,406 INFO L168 Benchmark]: Boogie Preprocessor took 24.62 ms. Allocated memory is still 117.4 MB. Free memory was 90.7 MB in the beginning and 89.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:47,407 INFO L168 Benchmark]: RCFGBuilder took 451.80 ms. Allocated memory is still 117.4 MB. Free memory was 89.7 MB in the beginning and 78.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,408 INFO L168 Benchmark]: TraceAbstraction took 376.24 ms. Allocated memory is still 117.4 MB. Free memory was 77.6 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:47,409 INFO L168 Benchmark]: Witness Printer took 43.74 ms. Allocated memory is still 117.4 MB. Free memory was 65.0 MB in the beginning and 63.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:47,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 117.4 MB. Free memory is still 94.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.70 ms. Allocated memory is still 117.4 MB. Free memory was 77.6 MB in the beginning and 92.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.30 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 90.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.62 ms. Allocated memory is still 117.4 MB. Free memory was 90.7 MB in the beginning and 89.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 451.80 ms. Allocated memory is still 117.4 MB. Free memory was 89.7 MB in the beginning and 78.1 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 376.24 ms. Allocated memory is still 117.4 MB. Free memory was 77.6 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 43.74 ms. Allocated memory is still 117.4 MB. Free memory was 65.0 MB in the beginning and 63.3 MB in the end (delta: 1.7 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 r = __VERIFIER_nondet_int(); [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. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: 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, 21 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 229.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.6ms SsaConstructionTime, 37.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 02:30:47,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b1755ca-ba26-4634-b744-4f2d9d78a98b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...