./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb --- 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-2329fc7 [2022-12-14 21:28:30,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:28:30,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:28:30,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:28:30,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:28:30,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:28:30,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:28:30,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:28:30,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:28:30,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:28:30,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:28:30,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:28:30,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:28:30,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:28:30,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:28:30,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:28:30,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:28:30,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:28:30,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:28:30,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:28:30,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:28:30,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:28:30,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:28:30,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:28:30,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:28:30,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:28:30,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:28:30,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:28:30,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:28:30,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:28:30,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:28:30,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:28:30,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:28:30,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:28:30,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:28:30,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:28:30,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:28:30,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:28:30,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:28:30,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:28:30,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:28:30,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 21:28:30,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:28:30,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:28:30,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:28:30,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:28:30,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:28:30,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:28:30,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:28:30,279 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:28:30,279 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:28:30,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:28:30,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:28:30,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:28:30,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:28:30,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:28:30,280 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:28:30,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:28:30,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:28:30,280 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_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb [2022-12-14 21:28:30,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:28:30,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:28:30,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:28:30,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:28:30,488 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:28:30,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2022-12-14 21:28:33,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:28:33,249 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:28:33,249 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2022-12-14 21:28:33,253 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/data/129b151ef/09a0e315297444789aa2287b546c91f3/FLAG262a73bed [2022-12-14 21:28:33,264 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/data/129b151ef/09a0e315297444789aa2287b546c91f3 [2022-12-14 21:28:33,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:28:33,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:28:33,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:28:33,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:28:33,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:28:33,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3984adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33, skipping insertion in model container [2022-12-14 21:28:33,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:28:33,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:28:33,402 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313] [2022-12-14 21:28:33,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:28:33,423 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:28:33,432 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313] [2022-12-14 21:28:33,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:28:33,443 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:28:33,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33 WrapperNode [2022-12-14 21:28:33,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:28:33,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:28:33,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:28:33,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:28:33,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,467 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-12-14 21:28:33,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:28:33,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:28:33,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:28:33,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:28:33,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,479 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:28:33,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:28:33,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:28:33,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:28:33,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:28:33,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:28:33,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:28:33,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:28:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 21:28:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:28:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:28:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 21:28:33,594 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:28:33,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:28:33,653 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:28:33,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:28:33,671 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 21:28:33,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:28:33 BoogieIcfgContainer [2022-12-14 21:28:33,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:28:33,674 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:28:33,674 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:28:33,682 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:28:33,682 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:28:33" (1/1) ... [2022-12-14 21:28:33,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:28:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:28:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-12-14 21:28:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-12-14 21:28:33,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 21:28:33,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:28:33,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:28:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:28:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:28:33,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:28:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-12-14 21:28:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-12-14 21:28:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 21:28:33,930 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:28:33,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:28:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:28:33,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:28:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:28:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-12-14 21:28:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 21:28:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 21:28:33,990 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:28:33,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:28:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:28:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:28:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:28:34,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-12-14 21:28:34,163 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-12-14 21:28:34,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 21:28:34,165 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:28:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:28:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:28:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 21:28:34,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:28:34,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-12-14 21:28:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-14 21:28:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 21:28:34,294 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:28:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:28:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:28:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:28:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:28:34,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-12-14 21:28:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-12-14 21:28:34,426 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 21:28:34,426 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 21:28:34,434 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-12-14 21:28:34,452 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-14 21:28:34,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:28:34 ImpRootNode [2022-12-14 21:28:34,460 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:28:34,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:28:34,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:28:34,461 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:28:34,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:28:33" (3/4) ... [2022-12-14 21:28:34,465 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 21:28:34,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-14 21:28:34,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 21:28:34,473 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 21:28:34,474 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 21:28:34,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:28:34,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:28:34,501 INFO L158 Benchmark]: Toolchain (without parser) took 1233.37ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 69.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-12-14 21:28:34,501 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:28:34,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.01ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 82.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 21:28:34,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.57ms. Allocated memory is still 127.9MB. Free memory was 82.4MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:28:34,503 INFO L158 Benchmark]: Boogie Preprocessor took 13.37ms. Allocated memory is still 127.9MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:28:34,503 INFO L158 Benchmark]: RCFGBuilder took 191.81ms. Allocated memory is still 127.9MB. Free memory was 80.0MB in the beginning and 70.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 21:28:34,503 INFO L158 Benchmark]: CodeCheck took 786.34ms. Allocated memory is still 127.9MB. Free memory was 70.3MB in the beginning and 71.9MB in the end (delta: -1.7MB). Peak memory consumption was 307.7kB. Max. memory is 16.1GB. [2022-12-14 21:28:34,504 INFO L158 Benchmark]: Witness Printer took 39.42ms. Allocated memory is still 127.9MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:28:34,506 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 0 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 186 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 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: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.01ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 82.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.57ms. Allocated memory is still 127.9MB. Free memory was 82.4MB in the beginning and 81.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.37ms. Allocated memory is still 127.9MB. Free memory was 81.1MB in the beginning and 80.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 191.81ms. Allocated memory is still 127.9MB. Free memory was 80.0MB in the beginning and 70.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 786.34ms. Allocated memory is still 127.9MB. Free memory was 70.3MB in the beginning and 71.9MB in the end (delta: -1.7MB). Peak memory consumption was 307.7kB. Max. memory is 16.1GB. * Witness Printer took 39.42ms. Allocated memory is still 127.9MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 21:28:34,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90c0492d-784e-4f1f-87ad-4f8f755f3362/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE