./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.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_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/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_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/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_5105db12-a6a1-474a-82f1-1952e9dae2ed/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 96d73e5144e69b17de356213175b4cac1e1bd0fb8c4e4377e7e151c0511f2395 --- 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 18:25:58,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:25:58,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:25:58,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:25:58,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:25:58,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:25:58,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:25:58,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:25:58,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:25:58,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:25:58,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:25:58,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:25:58,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:25:58,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:25:58,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:25:58,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:25:58,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:25:58,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:25:58,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:25:58,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:25:58,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:25:58,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:25:58,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:25:58,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:25:58,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:25:58,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:25:58,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:25:58,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:25:58,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:25:58,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:25:58,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:25:58,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:25:58,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:25:58,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:25:58,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:25:58,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:25:58,082 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:25:58,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:25:58,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:25:58,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:25:58,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:25:58,095 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:25:58,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:25:58,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:25:58,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:25:58,140 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:25:58,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:25:58,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:25:58,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:25:58,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:25:58,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:25:58,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:25:58,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:25:58,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:25:58,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:25:58,142 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:25:58,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:25:58,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:25:58,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:25:58,143 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:25:58,144 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:25:58,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:25:58,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:25:58,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:25:58,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:25:58,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:25:58,145 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:25:58,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:25:58,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:25:58,146 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_5105db12-a6a1-474a-82f1-1952e9dae2ed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96d73e5144e69b17de356213175b4cac1e1bd0fb8c4e4377e7e151c0511f2395 [2022-11-20 18:25:58,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:25:58,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:25:58,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:25:58,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:25:58,460 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:25:58,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i [2022-11-20 18:26:01,532 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:26:01,859 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:26:01,863 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i [2022-11-20 18:26:01,877 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/data/39556c837/f3b6a449aad34842a36447987f070098/FLAG69e4f0eff [2022-11-20 18:26:01,891 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/data/39556c837/f3b6a449aad34842a36447987f070098 [2022-11-20 18:26:01,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:26:01,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:26:01,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:26:01,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:26:01,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:26:01,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:01" (1/1) ... [2022-11-20 18:26:01,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9f068a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:01, skipping insertion in model container [2022-11-20 18:26:01,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:01" (1/1) ... [2022-11-20 18:26:01,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:26:01,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:26:02,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:26:02,298 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:26:02,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:26:02,370 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:26:02,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02 WrapperNode [2022-11-20 18:26:02,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:26:02,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:26:02,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:26:02,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:26:02,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,413 INFO L138 Inliner]: procedures = 111, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-11-20 18:26:02,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:26:02,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:26:02,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:26:02,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:26:02,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,437 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:26:02,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:26:02,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:26:02,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:26:02,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:26:02,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:26:02,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:26:02,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:26:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:26:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:26:02,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:26:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:26:02,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:26:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:26:02,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:26:02,694 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:26:02,862 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:26:02,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:26:02,894 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 18:26:02,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:02 BoogieIcfgContainer [2022-11-20 18:26:02,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:26:02,898 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:26:02,898 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:26:02,909 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:26:02,910 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:02" (1/1) ... [2022-11-20 18:26:02,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:26:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:26:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-11-20 18:26:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-20 18:26:02,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:26:02,979 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:26:02,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:26:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:26:03,308 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 18:26:03,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:26:03,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2022-11-20 18:26:03,376 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-20 18:26:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:26:03,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:26:03,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:26:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:26:03,487 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 18:26:03,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:26:03,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-11-20 18:26:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-11-20 18:26:03,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 18:26:03,564 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-11-20 18:26:03,574 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 18:26:03,616 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:26:03,633 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:26:03,633 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 18:26:03,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:26:03 ImpRootNode [2022-11-20 18:26:03,633 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:26:03,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:26:03,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:26:03,634 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:26:03,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:02" (3/4) ... [2022-11-20 18:26:03,638 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 18:26:03,646 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 18:26:03,646 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 18:26:03,647 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 18:26:03,647 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 18:26:03,695 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:26:03,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:26:03,704 INFO L158 Benchmark]: Toolchain (without parser) took 1808.51ms. Allocated memory is still 157.3MB. Free memory was 115.6MB in the beginning and 56.3MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,705 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:26:03,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.96ms. Allocated memory is still 157.3MB. Free memory was 115.0MB in the beginning and 99.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.31ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,710 INFO L158 Benchmark]: Boogie Preprocessor took 26.15ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 96.8MB in the end (delta: 814.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,711 INFO L158 Benchmark]: RCFGBuilder took 456.27ms. Allocated memory is still 157.3MB. Free memory was 96.1MB in the beginning and 83.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,711 INFO L158 Benchmark]: CodeCheck took 735.22ms. Allocated memory is still 157.3MB. Free memory was 83.6MB in the beginning and 59.0MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,712 INFO L158 Benchmark]: Witness Printer took 69.25ms. Allocated memory is still 157.3MB. Free memory was 59.0MB in the beginning and 56.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:26:03,714 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, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: 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: 1 - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 119.5MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.96ms. Allocated memory is still 157.3MB. Free memory was 115.0MB in the beginning and 99.6MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.31ms. Allocated memory is still 157.3MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.15ms. Allocated memory is still 157.3MB. Free memory was 97.6MB in the beginning and 96.8MB in the end (delta: 814.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.27ms. Allocated memory is still 157.3MB. Free memory was 96.1MB in the beginning and 83.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 735.22ms. Allocated memory is still 157.3MB. Free memory was 83.6MB in the beginning and 59.0MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 69.25ms. Allocated memory is still 157.3MB. Free memory was 59.0MB in the beginning and 56.3MB 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 18:26:03,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5105db12-a6a1-474a-82f1-1952e9dae2ed/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