./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ --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 64bit --witnessprinter.graph.data.programhash ffd6e9554cad43049f3baa89c0ba2bf94011d3e069a47b1754df8be10679286a --- 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-6b4ec56 [2022-11-20 17:21:05,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:21:05,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:21:05,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:21:05,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:21:05,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:21:05,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:21:05,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:21:05,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:21:05,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:21:05,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:21:05,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:21:05,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:21:05,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:21:05,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:21:05,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:21:05,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:21:05,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:21:05,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:21:05,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:21:05,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:21:05,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:21:05,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:21:05,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:21:05,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:21:05,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:21:05,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:21:05,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:21:05,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:21:05,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:21:05,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:21:05,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:21:05,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:21:05,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:21:05,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:21:05,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:21:05,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:21:05,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:21:05,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:21:05,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:21:05,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:21:05,345 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:21:05,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:21:05,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:21:05,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:21:05,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:21:05,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:21:05,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:21:05,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:21:05,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:21:05,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:21:05,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:21:05,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:21:05,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:21:05,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:21:05,379 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:21:05,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:21:05,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:21:05,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:21:05,380 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:21:05,380 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:21:05,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:21:05,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:21:05,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:21:05,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:21:05,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:21:05,382 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:21:05,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:21:05,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:21:05,382 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_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffd6e9554cad43049f3baa89c0ba2bf94011d3e069a47b1754df8be10679286a [2022-11-20 17:21:05,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:21:05,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:21:05,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:21:05,807 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:21:05,808 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:21:05,810 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i [2022-11-20 17:21:09,383 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:21:09,761 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:21:09,761 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i [2022-11-20 17:21:09,779 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/data/a9f4513fb/8d0de2e4470d4bb0b45fd8a0724e2845/FLAG2ffbb6cb6 [2022-11-20 17:21:09,804 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/data/a9f4513fb/8d0de2e4470d4bb0b45fd8a0724e2845 [2022-11-20 17:21:09,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:21:09,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:21:09,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:21:09,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:21:09,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:21:09,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:21:09" (1/1) ... [2022-11-20 17:21:09,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248a562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:09, skipping insertion in model container [2022-11-20 17:21:09,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:21:09" (1/1) ... [2022-11-20 17:21:09,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:21:09,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:21:10,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:21:10,246 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:21:10,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:21:10,341 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:21:10,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10 WrapperNode [2022-11-20 17:21:10,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:21:10,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:21:10,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:21:10,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:21:10,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,394 INFO L138 Inliner]: procedures = 111, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2022-11-20 17:21:10,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:21:10,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:21:10,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:21:10,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:21:10,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:21:10,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:21:10,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:21:10,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:21:10,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:21:10,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:21:10,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:21:10,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:21:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:21:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:21:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:21:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:21:10,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:21:10,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:21:10,690 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:21:10,692 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:21:10,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:21:10,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:21:10,937 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 17:21:10,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:10 BoogieIcfgContainer [2022-11-20 17:21:10,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:21:10,942 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:21:10,942 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:21:10,955 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:21:10,955 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:10" (1/1) ... [2022-11-20 17:21:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:21:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-11-20 17:21:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-20 17:21:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:21:11,035 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:11,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:11,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:11,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2022-11-20 17:21:11,919 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 17:21:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:21:11,919 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:11,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:12,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-11-20 17:21:12,317 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-20 17:21:12,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:21:12,318 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:12,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:14,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2022-11-20 17:21:14,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-11-20 17:21:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:21:14,104 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:14,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:15,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2022-11-20 17:21:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2022-11-20 17:21:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:21:15,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:15,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 23 states and 39 transitions. [2022-11-20 17:21:15,670 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 39 transitions. [2022-11-20 17:21:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:21:15,671 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 47 transitions. [2022-11-20 17:21:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 47 transitions. [2022-11-20 17:21:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:21:17,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:17,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:17,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 48 transitions. [2022-11-20 17:21:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 48 transitions. [2022-11-20 17:21:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:21:17,746 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:21:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:21:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:21:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:21:19,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:21:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-11-20 17:21:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-20 17:21:19,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:21:19,725 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2022-11-20 17:21:19,738 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:21:19,808 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:21:19,822 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2022-11-20 17:21:19,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:21:19 ImpRootNode [2022-11-20 17:21:19,835 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:21:19,836 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:21:19,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:21:19,836 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:21:19,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:10" (3/4) ... [2022-11-20 17:21:19,842 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:21:19,862 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 17:21:19,869 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 17:21:19,870 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 17:21:19,870 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:21:19,927 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:21:19,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:21:19,929 INFO L158 Benchmark]: Toolchain (without parser) took 10119.32ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 90.5MB in the beginning and 102.7MB in the end (delta: -12.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2022-11-20 17:21:19,929 INFO L158 Benchmark]: CDTParser took 1.83ms. Allocated memory is still 127.9MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:21:19,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.23ms. Allocated memory is still 127.9MB. Free memory was 90.1MB in the beginning and 93.4MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 17:21:19,930 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.61ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:21:19,930 INFO L158 Benchmark]: Boogie Preprocessor took 28.70ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 90.4MB in the end (delta: 933.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:21:19,931 INFO L158 Benchmark]: RCFGBuilder took 516.41ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 75.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:21:19,931 INFO L158 Benchmark]: CodeCheck took 8892.99ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 75.3MB in the beginning and 105.9MB in the end (delta: -30.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-11-20 17:21:19,932 INFO L158 Benchmark]: Witness Printer took 92.18ms. Allocated memory is still 186.6MB. Free memory was 105.9MB in the beginning and 102.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:21:19,934 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 183 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 818 IncrementalHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 183 mSolverCounterUnsat, 21 mSDtfsCounter, 818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 681 GetRequests, 571 SyntacticMatches, 4 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4026 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 10/16 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 - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (0 <= unknown-#memory_int-unknown[x_ref][x_ref] + 2147483648 && (z_ref == x_ref || !(z_ref == x_ref))) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.83ms. Allocated memory is still 127.9MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.23ms. Allocated memory is still 127.9MB. Free memory was 90.1MB in the beginning and 93.4MB in the end (delta: -3.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.61ms. Allocated memory is still 127.9MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.70ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 90.4MB in the end (delta: 933.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 516.41ms. Allocated memory is still 127.9MB. Free memory was 90.4MB in the beginning and 75.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 8892.99ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 75.3MB in the beginning and 105.9MB in the end (delta: -30.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 92.18ms. Allocated memory is still 186.6MB. Free memory was 105.9MB in the beginning and 102.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:21:19,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f32d0804-828e-4c42-add6-4d6e1da5a51b/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE