./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.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_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/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_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/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_fcef294c-25bf-409d-8a7b-e7652fb908f5/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 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a --- 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 18:25:42,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:25:42,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:25:42,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:25:42,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:25:42,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:25:42,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:25:42,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:25:42,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:25:42,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:25:42,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:25:42,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:25:42,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:25:42,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:25:42,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:25:42,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:25:42,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:25:42,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:25:42,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:25:42,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:25:42,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:25:42,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:25:42,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:25:42,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:25:42,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:25:42,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:25:42,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:25:42,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:25:42,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:25:42,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:25:42,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:25:42,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:25:42,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:25:42,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:25:42,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:25:42,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:25:42,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:25:42,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:25:42,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:25:42,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:25:42,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:25:42,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:25:42,410 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:25:42,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:25:42,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:25:42,412 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:25:42,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:25:42,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:25:42,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:25:42,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:25:42,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:25:42,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:25:42,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:25:42,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:25:42,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:25:42,415 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:25:42,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:25:42,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:25:42,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:25:42,416 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:25:42,416 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:25:42,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:25:42,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:25:42,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:25:42,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:25:42,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:25:42,418 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:25:42,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:25:42,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:25:42,418 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_fcef294c-25bf-409d-8a7b-e7652fb908f5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a [2022-11-20 18:25:42,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:25:42,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:25:42,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:25:42,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:25:42,754 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:25:42,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2022-11-20 18:25:45,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:25:46,151 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:25:46,152 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2022-11-20 18:25:46,173 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/data/67e31602f/b7f0d87f47a141668fc52bc9f2382ab1/FLAG5dd6b473a [2022-11-20 18:25:46,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/data/67e31602f/b7f0d87f47a141668fc52bc9f2382ab1 [2022-11-20 18:25:46,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:25:46,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:25:46,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:25:46,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:25:46,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:25:46,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4893e7fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46, skipping insertion in model container [2022-11-20 18:25:46,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:25:46,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:25:46,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:25:46,795 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:25:46,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:25:46,888 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:25:46,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46 WrapperNode [2022-11-20 18:25:46,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:25:46,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:25:46,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:25:46,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:25:46,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,933 INFO L138 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2022-11-20 18:25:46,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:25:46,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:25:46,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:25:46,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:25:46,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:25:46,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:25:46,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:25:46,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:25:46,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:25:46" (1/1) ... [2022-11-20 18:25:46,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:25:46,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:25:46,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:25:47,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:25:47,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:25:47,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:25:47,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:25:47,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:25:47,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:25:47,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:25:47,143 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:25:47,249 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:25:47,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:25:47,296 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 18:25:47,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:25:47 BoogieIcfgContainer [2022-11-20 18:25:47,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:25:47,300 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:25:47,300 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:25:47,310 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:25:47,311 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:25:47" (1/1) ... [2022-11-20 18:25:47,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:25:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:25:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2022-11-20 18:25:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2022-11-20 18:25:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:25:47,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:25:47,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:25:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:25:47,798 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 18:25:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:25:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2022-11-20 18:25:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2022-11-20 18:25:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:25:47,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:25:47,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:25:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:25:48,223 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 18:25:48,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:25:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 17 states and 25 transitions. [2022-11-20 18:25:48,443 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2022-11-20 18:25:48,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 18:25:48,443 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:25:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:25:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:25:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:25:49,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:25:49,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2022-11-20 18:25:49,145 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2022-11-20 18:25:49,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:25:49,146 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2022-11-20 18:25:49,156 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 18:25:49,186 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2022-11-20 18:25:49,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:25:49 ImpRootNode [2022-11-20 18:25:49,200 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:25:49,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:25:49,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:25:49,203 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:25:49,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:25:47" (3/4) ... [2022-11-20 18:25:49,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:25:49,223 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 18:25:49,223 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 18:25:49,224 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:25:49,224 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:25:49,298 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:25:49,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:25:49,300 INFO L158 Benchmark]: Toolchain (without parser) took 2854.91ms. Allocated memory is still 172.0MB. Free memory was 130.1MB in the beginning and 64.6MB in the end (delta: 65.6MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,302 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 132.1MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:25:49,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.62ms. Allocated memory is still 172.0MB. Free memory was 129.5MB in the beginning and 114.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.36ms. Allocated memory is still 172.0MB. Free memory was 114.4MB in the beginning and 113.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,305 INFO L158 Benchmark]: Boogie Preprocessor took 23.13ms. Allocated memory is still 172.0MB. Free memory was 113.1MB in the beginning and 111.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,306 INFO L158 Benchmark]: RCFGBuilder took 341.11ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 100.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,307 INFO L158 Benchmark]: CodeCheck took 1900.91ms. Allocated memory is still 172.0MB. Free memory was 100.5MB in the beginning and 66.6MB in the end (delta: 33.9MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,307 INFO L158 Benchmark]: Witness Printer took 96.90ms. Allocated memory is still 172.0MB. Free memory was 66.6MB in the beginning and 64.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:25:49,309 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 6 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 268 GetRequests, 228 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/6 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: unknown-#memory_int-unknown[x][x] <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 132.1MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.62ms. Allocated memory is still 172.0MB. Free memory was 129.5MB in the beginning and 114.4MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.36ms. Allocated memory is still 172.0MB. Free memory was 114.4MB in the beginning and 113.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.13ms. Allocated memory is still 172.0MB. Free memory was 113.1MB in the beginning and 111.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.11ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 100.5MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1900.91ms. Allocated memory is still 172.0MB. Free memory was 100.5MB in the beginning and 66.6MB in the end (delta: 33.9MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Witness Printer took 96.90ms. Allocated memory is still 172.0MB. Free memory was 66.6MB in the beginning and 64.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 18:25:49,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef294c-25bf-409d-8a7b-e7652fb908f5/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