./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:46:38,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:38,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:38,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:38,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:38,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:38,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:38,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:38,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:38,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:38,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:38,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:38,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:38,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:38,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:38,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:38,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:38,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:38,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:38,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:38,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:38,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:38,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:38,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:38,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:38,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:38,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:38,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:38,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:38,888 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:38,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:38,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:38,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:38,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:38,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:38,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:38,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:38,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:38,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:38,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:38,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:38,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-10-17 16:46:38,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:38,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:38,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:46:38,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:46:38,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:38,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:38,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:38,949 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:46:38,950 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:46:38,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:38,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:46:38,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:38,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:46:38,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:38,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:46:38,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:46:38,953 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:46:38,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:46:38,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:38,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:46:38,954 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:38,954 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:38,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:38,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:38,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:38,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:38,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:46:38,955 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:38,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:38,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:46:38,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 917374027b639c45b575eeb17a4ba7670f94886b4db7d6a64e3f533dbd0231cc [2022-10-17 16:46:39,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:39,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:39,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:39,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:39,308 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:39,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2022-10-17 16:46:39,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/data/c67f38670/5564ee23deec42519981dcf782e751da/FLAG083e74698 [2022-10-17 16:46:39,883 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:39,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/sv-benchmarks/c/loop-zilu/benchmark27_linear.i [2022-10-17 16:46:39,890 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/data/c67f38670/5564ee23deec42519981dcf782e751da/FLAG083e74698 [2022-10-17 16:46:40,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/data/c67f38670/5564ee23deec42519981dcf782e751da [2022-10-17 16:46:40,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:40,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:40,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:40,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:40,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:40,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5290030f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40, skipping insertion in model container [2022-10-17 16:46:40,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:40,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:40,419 WARN L230 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_d830dc00-3137-4d15-971d-ee215f616426/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2022-10-17 16:46:40,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:40,434 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:40,447 WARN L230 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_d830dc00-3137-4d15-971d-ee215f616426/sv-benchmarks/c/loop-zilu/benchmark27_linear.i[868,881] [2022-10-17 16:46:40,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:40,463 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:40,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40 WrapperNode [2022-10-17 16:46:40,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:40,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:40,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:40,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:40,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,499 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-10-17 16:46:40,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:40,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:40,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:40,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:40,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:40,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:40,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:40,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:40,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:40,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:40,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:40,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:40,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:46:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:46:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:40,691 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:40,693 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:40,925 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:40,968 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:40,968 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:46:40,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:40 BoogieIcfgContainer [2022-10-17 16:46:40,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:40,972 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:40,972 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:41,002 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:41,003 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:40" (1/1) ... [2022-10-17 16:46:41,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-10-17 16:46:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-10-17 16:46:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:46:41,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:41,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:41,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:41,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2022-10-17 16:46:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-10-17 16:46:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:46:41,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:41,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:41,536 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:41,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:41,589 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:46:41,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:41 ImpRootNode [2022-10-17 16:46:41,614 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:41,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:41,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:41,615 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:41,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:40" (3/4) ... [2022-10-17 16:46:41,618 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:41,650 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:41,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:41,652 INFO L158 Benchmark]: Toolchain (without parser) took 1407.03ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 56.5MB in the beginning and 83.5MB in the end (delta: -27.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:41,652 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:41,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.08ms. Allocated memory is still 94.4MB. Free memory was 56.3MB in the beginning and 46.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:46:41,654 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.24ms. Allocated memory is still 94.4MB. Free memory was 46.6MB in the beginning and 45.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:41,654 INFO L158 Benchmark]: Boogie Preprocessor took 21.56ms. Allocated memory is still 94.4MB. Free memory was 45.1MB in the beginning and 44.1MB in the end (delta: 951.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:41,655 INFO L158 Benchmark]: RCFGBuilder took 448.54ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 44.1MB in the beginning and 92.2MB in the end (delta: -48.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-10-17 16:46:41,656 INFO L158 Benchmark]: CodeCheck took 642.23ms. Allocated memory is still 119.5MB. Free memory was 91.5MB in the beginning and 85.6MB in the end (delta: 5.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-10-17 16:46:41,661 INFO L158 Benchmark]: Witness Printer took 36.20ms. Allocated memory is still 119.5MB. Free memory was 85.0MB in the beginning and 83.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:41,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - 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 VAL [i=-2147483648, ii-j=1, j=1, k=0] [L23] i-j VAL [i=-2147483648, ii-j=1, j=1, k=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 94.4MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.08ms. Allocated memory is still 94.4MB. Free memory was 56.3MB in the beginning and 46.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.24ms. Allocated memory is still 94.4MB. Free memory was 46.6MB in the beginning and 45.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.56ms. Allocated memory is still 94.4MB. Free memory was 45.1MB in the beginning and 44.1MB in the end (delta: 951.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.54ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 44.1MB in the beginning and 92.2MB in the end (delta: -48.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * CodeCheck took 642.23ms. Allocated memory is still 119.5MB. Free memory was 91.5MB in the beginning and 85.6MB in the end (delta: 5.8MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 36.20ms. Allocated memory is still 119.5MB. Free memory was 85.0MB in the beginning and 83.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:46:41,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d830dc00-3137-4d15-971d-ee215f616426/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)