./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/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_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/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 32bit --witnessprinter.graph.data.programhash 621898048ba1a114e9dcad9e5710c657610f8003e8ee1fe56040431e90585894 --- 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 18:26:55,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:26:55,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:26:55,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:26:55,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:26:55,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:26:55,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:26:56,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:26:56,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:26:56,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:26:56,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:26:56,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:26:56,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:26:56,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:26:56,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:26:56,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:26:56,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:26:56,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:26:56,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:26:56,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:26:56,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:26:56,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:26:56,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:26:56,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:26:56,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:26:56,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:26:56,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:26:56,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:26:56,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:26:56,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:26:56,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:26:56,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:26:56,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:26:56,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:26:56,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:26:56,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:26:56,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:26:56,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:26:56,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:26:56,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:26:56,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:26:56,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 18:26:56,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:26:56,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:26:56,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:26:56,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:26:56,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:26:56,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:26:56,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:26:56,098 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:26:56,098 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:26:56,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:26:56,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:26:56,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:26:56,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:26:56,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:26:56,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:26:56,100 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:26:56,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:26:56,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:26:56,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:26:56,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:26:56,101 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:26:56,101 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:26:56,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:26:56,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:26:56,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:26:56,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:26:56,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:26:56,102 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:26:56,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:26:56,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:26:56,103 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_c010312c-735e-4bea-99a9-74b34aea9340/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 621898048ba1a114e9dcad9e5710c657610f8003e8ee1fe56040431e90585894 [2022-11-20 18:26:56,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:26:56,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:26:56,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:26:56,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:26:56,401 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:26:56,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/recursive-simple/id_b3_o5-2.c [2022-11-20 18:26:59,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:26:59,581 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:26:59,581 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c [2022-11-20 18:26:59,587 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/data/4e47f193e/3a6c5db0d3234ea5b50261fcc7425ff4/FLAGe304c7796 [2022-11-20 18:26:59,603 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/data/4e47f193e/3a6c5db0d3234ea5b50261fcc7425ff4 [2022-11-20 18:26:59,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:26:59,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:26:59,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:26:59,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:26:59,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:26:59,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45be7a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59, skipping insertion in model container [2022-11-20 18:26:59,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:26:59,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:26:59,854 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_c010312c-735e-4bea-99a9-74b34aea9340/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c[528,541] [2022-11-20 18:26:59,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:26:59,867 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:26:59,884 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_c010312c-735e-4bea-99a9-74b34aea9340/sv-benchmarks/c/recursive-simple/id_b3_o5-2.c[528,541] [2022-11-20 18:26:59,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:26:59,899 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:26:59,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59 WrapperNode [2022-11-20 18:26:59,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:26:59,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:26:59,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:26:59,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:26:59,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,936 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-20 18:26:59,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:26:59,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:26:59,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:26:59,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:26:59,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:26:59,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:26:59,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:26:59,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:26:59,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:59" (1/1) ... [2022-11-20 18:26:59,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:26:59,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:26:59,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:27:00,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:27:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:27:00,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:27:00,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:27:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:27:00,039 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-20 18:27:00,039 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-20 18:27:00,119 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:27:00,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:27:00,289 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:27:00,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:27:00,359 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 18:27:00,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:00 BoogieIcfgContainer [2022-11-20 18:27:00,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:27:00,363 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:27:00,363 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:27:00,374 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:27:00,374 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:00" (1/1) ... [2022-11-20 18:27:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:27:00,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:00,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2022-11-20 18:27:00,440 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-20 18:27:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 18:27:00,445 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:00,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 18:27:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2022-11-20 18:27:00,850 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-11-20 18:27:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 18:27:00,851 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:00,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:00,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 18:27:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-11-20 18:27:01,009 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-20 18:27:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 18:27:01,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:01,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 18:27:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2022-11-20 18:27:01,355 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-20 18:27:01,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 18:27:01,357 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:01,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 18:27:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2022-11-20 18:27:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-20 18:27:01,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 18:27:01,620 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 18:27:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:02,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2022-11-20 18:27:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-20 18:27:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-20 18:27:02,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:27:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:27:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:27:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-20 18:27:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:27:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2022-11-20 18:27:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-20 18:27:02,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:27:02,713 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-11-20 18:27:02,723 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 18:27:02,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:27:02 ImpRootNode [2022-11-20 18:27:02,846 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:27:02,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:27:02,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:27:02,848 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:27:02,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:27:00" (3/4) ... [2022-11-20 18:27:02,854 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:27:02,867 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-20 18:27:02,875 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-20 18:27:02,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 18:27:02,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 18:27:02,876 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:27:02,941 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:27:02,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:27:02,942 INFO L158 Benchmark]: Toolchain (without parser) took 3334.30ms. Allocated memory is still 153.1MB. Free memory was 112.0MB in the beginning and 44.4MB in the end (delta: 67.6MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,942 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:27:02,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.78ms. Allocated memory is still 153.1MB. Free memory was 111.6MB in the beginning and 119.8MB in the end (delta: -8.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.00ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 118.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,943 INFO L158 Benchmark]: Boogie Preprocessor took 28.37ms. Allocated memory is still 153.1MB. Free memory was 118.4MB in the beginning and 117.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,944 INFO L158 Benchmark]: RCFGBuilder took 395.91ms. Allocated memory is still 153.1MB. Free memory was 117.2MB in the beginning and 106.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,944 INFO L158 Benchmark]: CodeCheck took 2483.36ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 47.4MB in the end (delta: 58.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,944 INFO L158 Benchmark]: Witness Printer took 93.47ms. Allocated memory is still 153.1MB. Free memory was 47.4MB in the beginning and 44.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:27:02,946 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 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 92 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 739 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 83/127 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.78ms. Allocated memory is still 153.1MB. Free memory was 111.6MB in the beginning and 119.8MB in the end (delta: -8.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.00ms. Allocated memory is still 153.1MB. Free memory was 119.8MB in the beginning and 118.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.37ms. Allocated memory is still 153.1MB. Free memory was 118.4MB in the beginning and 117.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.91ms. Allocated memory is still 153.1MB. Free memory was 117.2MB in the beginning and 106.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2483.36ms. Allocated memory is still 153.1MB. Free memory was 106.3MB in the beginning and 47.4MB in the end (delta: 58.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 93.47ms. Allocated memory is still 153.1MB. Free memory was 47.4MB in the beginning and 44.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 18:27:02,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c010312c-735e-4bea-99a9-74b34aea9340/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