./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/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_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/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_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/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 f2e994fbd4308fecf33fa0184f8cdc44b0ef95d4019fc8f460440561d10a29a6 --- 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 17:13:10,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:13:10,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:13:10,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:13:10,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:13:10,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:13:10,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:13:10,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:13:10,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:13:10,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:13:10,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:13:10,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:13:10,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:13:10,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:13:10,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:13:10,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:13:10,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:13:10,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:13:10,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:13:10,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:13:10,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:13:10,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:13:10,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:13:10,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:13:10,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:13:10,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:13:10,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:13:10,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:13:10,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:13:10,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:13:10,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:13:10,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:13:10,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:13:10,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:13:10,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:13:10,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:13:10,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:13:10,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:13:10,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:13:10,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:13:10,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:13:10,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:13:10,972 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:13:10,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:13:10,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:13:10,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:13:10,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:13:10,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:13:10,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:13:10,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:13:10,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:13:10,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:13:10,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:13:10,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:13:10,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:13:10,976 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:13:10,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:13:10,977 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:13:10,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:13:10,977 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:13:10,977 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:13:10,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:13:10,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:13:10,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:13:10,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:13:10,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:13:10,979 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:13:10,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:13:10,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:13:10,979 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_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2e994fbd4308fecf33fa0184f8cdc44b0ef95d4019fc8f460440561d10a29a6 [2022-11-20 17:13:11,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:13:11,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:13:11,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:13:11,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:13:11,314 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:13:11,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2022-11-20 17:13:14,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:13:14,707 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:13:14,708 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2022-11-20 17:13:14,721 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/data/20de72ddb/95096bba112b4cf1a5f805bf59288a63/FLAG4be8fc27b [2022-11-20 17:13:14,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/data/20de72ddb/95096bba112b4cf1a5f805bf59288a63 [2022-11-20 17:13:14,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:13:14,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:13:14,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:13:14,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:13:14,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:13:14,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:13:14" (1/1) ... [2022-11-20 17:13:14,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f3784c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:14, skipping insertion in model container [2022-11-20 17:13:14,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:13:14" (1/1) ... [2022-11-20 17:13:14,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:13:14,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:13:15,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:13:15,202 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:13:15,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:13:15,297 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:13:15,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15 WrapperNode [2022-11-20 17:13:15,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:13:15,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:13:15,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:13:15,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:13:15,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,362 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2022-11-20 17:13:15,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:13:15,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:13:15,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:13:15,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:13:15,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,392 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:13:15,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:13:15,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:13:15,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:13:15,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:15,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:13:15,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:13:15,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:13:15,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:13:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:13:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:13:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:13:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:13:15,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:13:15,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:13:15,572 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:13:15,574 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:13:15,890 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:13:15,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:13:15,996 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 17:13:15,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:13:15 BoogieIcfgContainer [2022-11-20 17:13:15,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:13:16,000 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:13:16,000 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:13:16,011 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:13:16,012 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:13:15" (1/1) ... [2022-11-20 17:13:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:13:16,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:13:16,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2022-11-20 17:13:16,108 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-11-20 17:13:16,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 17:13:16,111 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:13:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:13:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:13:16,420 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 17:13:16,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:13:16,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-20 17:13:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-20 17:13:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 17:13:16,450 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:13:16,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:13:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:13:16,526 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 17:13:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:13:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2022-11-20 17:13:16,601 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-20 17:13:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:13:16,601 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:13:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:13:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:13:16,735 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 17:13:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:13:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2022-11-20 17:13:16,911 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-20 17:13:16,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:13:16,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:13:16,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:13:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:13:17,043 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 17:13:17,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:13:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2022-11-20 17:13:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2022-11-20 17:13:17,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:13:17,361 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 17:13:17,372 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:13:17,408 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:13:17,413 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:13:17,413 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:13:17,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:13:17 ImpRootNode [2022-11-20 17:13:17,414 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:13:17,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:13:17,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:13:17,415 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:13:17,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:13:15" (3/4) ... [2022-11-20 17:13:17,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:13:17,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 17:13:17,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 17:13:17,430 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 17:13:17,431 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:13:17,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:13:17,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:13:17,475 INFO L158 Benchmark]: Toolchain (without parser) took 2725.12ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 47.7MB in the end (delta: 82.7MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,475 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 109.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:13:17,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.39ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 127.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.76ms. Allocated memory is still 167.8MB. Free memory was 127.4MB in the beginning and 125.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,477 INFO L158 Benchmark]: Boogie Preprocessor took 36.39ms. Allocated memory is still 167.8MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,477 INFO L158 Benchmark]: RCFGBuilder took 598.32ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 106.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,478 INFO L158 Benchmark]: CodeCheck took 1414.06ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 50.5MB in the end (delta: 56.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,478 INFO L158 Benchmark]: Witness Printer took 59.64ms. Allocated memory is still 167.8MB. Free memory was 50.5MB in the beginning and 47.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:13:17,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 392]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 392]: 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: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 109.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.39ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 127.4MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.76ms. Allocated memory is still 167.8MB. Free memory was 127.4MB in the beginning and 125.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.39ms. Allocated memory is still 167.8MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 598.32ms. Allocated memory is still 167.8MB. Free memory was 123.2MB in the beginning and 106.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1414.06ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 50.5MB in the end (delta: 56.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 59.64ms. Allocated memory is still 167.8MB. Free memory was 50.5MB in the beginning and 47.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:13:17,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16de1f5f-4286-4cc1-8d7b-b19d7ccb1a86/bin/ukojak-pZX7IvK2PQ/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