./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6826aeecba49275836b6b398765a757158a4e84d2c6569399d77f2320562875e --- 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-38b53e6 [2022-11-25 18:09:31,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:09:31,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:09:31,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:09:31,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:09:31,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:09:31,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:09:31,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:09:31,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:09:31,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:09:31,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:09:31,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:09:31,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:09:31,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:09:31,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:09:31,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:09:31,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:09:31,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:09:31,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:09:31,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:09:31,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:09:31,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:09:31,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:09:31,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:09:31,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:09:31,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:09:31,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:09:31,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:09:31,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:09:31,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:09:31,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:09:31,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:09:31,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:09:31,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:09:31,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:09:31,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:09:31,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:09:31,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:09:31,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:09:31,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:09:31,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:09:31,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 18:09:31,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:09:31,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:09:31,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:09:31,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:09:31,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:09:31,290 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:09:31,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:09:31,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:09:31,291 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:09:31,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:09:31,293 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:09:31,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:09:31,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:09:31,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:09:31,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:09:31,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:09:31,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:09:31,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:09:31,296 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:09:31,296 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:09:31,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:09:31,297 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:09:31,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:09:31,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:09:31,298 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:09:31,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:09:31,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:09:31,299 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:09:31,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:09:31,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:09:31,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:09:31,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:09:31,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:09:31,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:09:31,302 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:09:31,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:09:31,303 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6826aeecba49275836b6b398765a757158a4e84d2c6569399d77f2320562875e [2022-11-25 18:09:31,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:09:31,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:09:31,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:09:31,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:09:31,671 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:09:31,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/memsafety-bftpd/bftpd_3.i [2022-11-25 18:09:34,890 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:09:35,174 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:09:35,174 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/sv-benchmarks/c/memsafety-bftpd/bftpd_3.i [2022-11-25 18:09:35,191 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/data/438fba263/a8be5552439b4e87a5727af45c26dbae/FLAG3d6da9649 [2022-11-25 18:09:35,217 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/data/438fba263/a8be5552439b4e87a5727af45c26dbae [2022-11-25 18:09:35,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:09:35,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:09:35,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:09:35,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:09:35,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:09:35,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:35,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da27f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35, skipping insertion in model container [2022-11-25 18:09:35,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:35,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:09:35,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:09:35,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:09:35,800 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:09:35,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:09:35,940 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:09:35,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35 WrapperNode [2022-11-25 18:09:35,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:09:35,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:09:35,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:09:35,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:09:35,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:35,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,030 INFO L138 Inliner]: procedures = 168, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2022-11-25 18:09:36,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:09:36,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:09:36,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:09:36,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:09:36,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,078 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:09:36,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:09:36,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:09:36,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:09:36,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (1/1) ... [2022-11-25 18:09:36,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:09:36,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:09:36,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:09:36,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:09:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:09:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2022-11-25 18:09:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2022-11-25 18:09:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:09:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:09:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 18:09:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:09:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 18:09:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:09:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:09:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:09:36,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:09:36,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:09:36,475 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:09:36,502 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:09:36,502 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:09:36,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:36 BoogieIcfgContainer [2022-11-25 18:09:36,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:09:36,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:09:36,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:09:36,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:09:36,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:09:35" (1/3) ... [2022-11-25 18:09:36,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7b9b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:09:36, skipping insertion in model container [2022-11-25 18:09:36,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:09:35" (2/3) ... [2022-11-25 18:09:36,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7b9b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:09:36, skipping insertion in model container [2022-11-25 18:09:36,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:36" (3/3) ... [2022-11-25 18:09:36,521 INFO L112 eAbstractionObserver]: Analyzing ICFG bftpd_3.i [2022-11-25 18:09:36,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:09:36,575 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 18:09:36,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:09:36,692 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b2a839e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:09:36,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:09:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 18:09:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 18:09:36,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:36,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:36,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:09:36,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:36,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1490033639, now seen corresponding path program 1 times [2022-11-25 18:09:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402528126] [2022-11-25 18:09:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:36,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:37,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402528126] [2022-11-25 18:09:37,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402528126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:37,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:37,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:09:37,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495655640] [2022-11-25 18:09:37,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:37,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:09:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:37,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:09:37,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:09:37,208 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 23 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:37,303 INFO L93 Difference]: Finished difference Result 69 states and 101 transitions. [2022-11-25 18:09:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:09:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 18:09:37,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:37,319 INFO L225 Difference]: With dead ends: 69 [2022-11-25 18:09:37,319 INFO L226 Difference]: Without dead ends: 40 [2022-11-25 18:09:37,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:09:37,330 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 19 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:37,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 98 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:09:37,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-25 18:09:37,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 30. [2022-11-25 18:09:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:09:37,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2022-11-25 18:09:37,383 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 8 [2022-11-25 18:09:37,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:37,384 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2022-11-25 18:09:37,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:37,384 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2022-11-25 18:09:37,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 18:09:37,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:37,386 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:37,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:09:37,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:09:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:37,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1255026931, now seen corresponding path program 1 times [2022-11-25 18:09:37,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:37,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497596028] [2022-11-25 18:09:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:37,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:37,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:37,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497596028] [2022-11-25 18:09:37,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497596028] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 18:09:37,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143028332] [2022-11-25 18:09:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:37,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:09:37,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:09:37,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 18:09:37,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 18:09:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:37,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 18:09:37,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:09:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:09:37,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:09:37,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143028332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:37,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 18:09:37,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-11-25 18:09:37,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920960341] [2022-11-25 18:09:37,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:37,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:09:37,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:37,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:09:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 18:09:37,936 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:38,010 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2022-11-25 18:09:38,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:09:38,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 18:09:38,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:38,016 INFO L225 Difference]: With dead ends: 30 [2022-11-25 18:09:38,016 INFO L226 Difference]: Without dead ends: 29 [2022-11-25 18:09:38,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:09:38,018 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:38,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 76 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:09:38,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-25 18:09:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-25 18:09:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:09:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2022-11-25 18:09:38,034 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 13 [2022-11-25 18:09:38,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:38,035 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2022-11-25 18:09:38,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-11-25 18:09:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:09:38,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:09:38,038 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:09:38,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 18:09:38,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 18:09:38,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:09:38,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:09:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash 251129279, now seen corresponding path program 1 times [2022-11-25 18:09:38,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:09:38,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446744418] [2022-11-25 18:09:38,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:09:38,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:09:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:09:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 18:09:38,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:09:38,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446744418] [2022-11-25 18:09:38,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446744418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:09:38,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:09:38,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:09:38,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986585526] [2022-11-25 18:09:38,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:09:38,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:09:38,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:09:38,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:09:38,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:09:38,367 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:09:38,409 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2022-11-25 18:09:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:09:38,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 18:09:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:09:38,414 INFO L225 Difference]: With dead ends: 31 [2022-11-25 18:09:38,414 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:09:38,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:09:38,415 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:09:38,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 64 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:09:38,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:09:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:09:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-25 18:09:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:09:38,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-25 18:09:38,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:09:38,418 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:09:38,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:09:38,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:09:38,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:09:38,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 18:09:38,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 18:09:38,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:09:38,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:09:38,478 INFO L899 garLoopResultBuilder]: For program point L692-2(lines 692 699) no Hoare annotation was computed. [2022-11-25 18:09:38,479 INFO L899 garLoopResultBuilder]: For program point L692-3(line 692) no Hoare annotation was computed. [2022-11-25 18:09:38,479 INFO L899 garLoopResultBuilder]: For program point L692-4(line 692) no Hoare annotation was computed. [2022-11-25 18:09:38,479 INFO L895 garLoopResultBuilder]: At program point L692-5(lines 692 699) the Hoare annotation is: (<= 0 (+ |parse_input_~i~0#1| 2147483648)) [2022-11-25 18:09:38,480 INFO L899 garLoopResultBuilder]: For program point L692-6(lines 691 700) no Hoare annotation was computed. [2022-11-25 18:09:38,480 INFO L899 garLoopResultBuilder]: For program point L713(lines 713 716) no Hoare annotation was computed. [2022-11-25 18:09:38,481 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:09:38,482 INFO L895 garLoopResultBuilder]: At program point L701(lines 701 710) the Hoare annotation is: (and (<= 0 (+ |parse_input_~i~0#1| 2147483648)) (<= |parse_input_~i~0#1| 1)) [2022-11-25 18:09:38,482 INFO L895 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (<= 0 (+ |parse_input_~i~0#1| 2147483648)) (<= |parse_input_~i~0#1| 1)) [2022-11-25 18:09:38,482 INFO L899 garLoopResultBuilder]: For program point parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2022-11-25 18:09:38,482 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 698) no Hoare annotation was computed. [2022-11-25 18:09:38,482 INFO L899 garLoopResultBuilder]: For program point L706(lines 706 707) no Hoare annotation was computed. [2022-11-25 18:09:38,483 INFO L899 garLoopResultBuilder]: For program point L706-2(lines 706 707) no Hoare annotation was computed. [2022-11-25 18:09:38,483 INFO L899 garLoopResultBuilder]: For program point parse_inputEXIT(lines 691 700) no Hoare annotation was computed. [2022-11-25 18:09:38,484 INFO L899 garLoopResultBuilder]: For program point parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 692) no Hoare annotation was computed. [2022-11-25 18:09:38,484 INFO L899 garLoopResultBuilder]: For program point L694(lines 694 697) no Hoare annotation was computed. [2022-11-25 18:09:38,484 INFO L895 garLoopResultBuilder]: At program point L711(lines 711 720) the Hoare annotation is: (and (<= 0 (+ |parse_input_~i~0#1| 2147483648)) (<= |parse_input_~i~0#1| 1)) [2022-11-25 18:09:38,484 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 705) no Hoare annotation was computed. [2022-11-25 18:09:38,485 INFO L902 garLoopResultBuilder]: At program point parse_inputENTRY(lines 691 700) the Hoare annotation is: true [2022-11-25 18:09:38,485 INFO L902 garLoopResultBuilder]: At program point L722-1(line 722) the Hoare annotation is: true [2022-11-25 18:09:38,485 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:09:38,487 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:09:38,487 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:09:38,489 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:09:38,490 INFO L902 garLoopResultBuilder]: At program point L725(lines 721 726) the Hoare annotation is: true [2022-11-25 18:09:38,492 INFO L899 garLoopResultBuilder]: For program point L724(line 724) no Hoare annotation was computed. [2022-11-25 18:09:38,495 INFO L902 garLoopResultBuilder]: At program point L723(line 723) the Hoare annotation is: true [2022-11-25 18:09:38,496 INFO L902 garLoopResultBuilder]: At program point L722(line 722) the Hoare annotation is: true [2022-11-25 18:09:38,499 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 18:09:38,502 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:09:38,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:09:38 BoogieIcfgContainer [2022-11-25 18:09:38,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:09:38,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:09:38,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:09:38,522 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:09:38,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:09:36" (3/4) ... [2022-11-25 18:09:38,531 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:09:38,539 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_input [2022-11-25 18:09:38,545 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-25 18:09:38,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-25 18:09:38,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 18:09:38,546 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:09:38,547 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:09:38,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:09:38,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:09:38,594 INFO L158 Benchmark]: Toolchain (without parser) took 3372.40ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 67.5MB in the beginning and 93.5MB in the end (delta: -26.1MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-11-25 18:09:38,594 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 132.1MB. Free memory was 101.0MB in the beginning and 100.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:09:38,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 718.33ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 67.3MB in the beginning and 146.3MB in the end (delta: -79.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-25 18:09:38,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.98ms. Allocated memory is still 192.9MB. Free memory was 146.3MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:09:38,596 INFO L158 Benchmark]: Boogie Preprocessor took 60.03ms. Allocated memory is still 192.9MB. Free memory was 144.2MB in the beginning and 143.4MB in the end (delta: 840.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:09:38,596 INFO L158 Benchmark]: RCFGBuilder took 413.53ms. Allocated memory is still 192.9MB. Free memory was 143.0MB in the beginning and 129.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:09:38,596 INFO L158 Benchmark]: TraceAbstraction took 2011.90ms. Allocated memory is still 192.9MB. Free memory was 128.7MB in the beginning and 96.7MB in the end (delta: 32.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-11-25 18:09:38,597 INFO L158 Benchmark]: Witness Printer took 71.79ms. Allocated memory is still 192.9MB. Free memory was 96.7MB in the beginning and 93.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:09:38,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 132.1MB. Free memory was 101.0MB in the beginning and 100.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 718.33ms. Allocated memory was 132.1MB in the beginning and 192.9MB in the end (delta: 60.8MB). Free memory was 67.3MB in the beginning and 146.3MB in the end (delta: -79.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.98ms. Allocated memory is still 192.9MB. Free memory was 146.3MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.03ms. Allocated memory is still 192.9MB. Free memory was 144.2MB in the beginning and 143.4MB in the end (delta: 840.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.53ms. Allocated memory is still 192.9MB. Free memory was 143.0MB in the beginning and 129.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2011.90ms. Allocated memory is still 192.9MB. Free memory was 128.7MB in the beginning and 96.7MB in the end (delta: 32.0MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 71.79ms. Allocated memory is still 192.9MB. Free memory was 96.7MB in the beginning and 93.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 238 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 84 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 29 PreInvPairs, 44 NumberOfFragments, 37 HoareAnnotationTreeSize, 29 FomulaSimplifications, 39 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 1 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 9/13 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 701]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && i <= 1 - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && i <= 1 - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 721]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && i <= 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 18:09:38,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d1f4f7f-d2ad-40d5-8eab-8f6d3ab6ab9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE