./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-simple/nested_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/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_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/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_03ef1dea-b27a-490e-8b66-d47a2064fb61/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 5dbc8f54f9c446babb02937902a9e0651922ee3ad3469ce820281714b321626f --- 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 17:14:51,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:14:51,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:14:52,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:14:52,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:14:52,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:14:52,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:14:52,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:14:52,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:14:52,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:14:52,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:14:52,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:14:52,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:14:52,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:14:52,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:14:52,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:14:52,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:14:52,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:14:52,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:14:52,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:14:52,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:14:52,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:14:52,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:14:52,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:14:52,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:14:52,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:14:52,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:14:52,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:14:52,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:14:52,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:14:52,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:14:52,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:14:52,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:14:52,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:14:52,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:14:52,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:14:52,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:14:52,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:14:52,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:14:52,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:14:52,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:14:52,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 17:14:52,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:14:52,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:14:52,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:14:52,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:14:52,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:14:52,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:14:52,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:14:52,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 17:14:52,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:14:52,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:14:52,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 17:14:52,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:14:52,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:14:52,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:14:52,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:14:52,094 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:14:52,095 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 17:14:52,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:14:52,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:14:52,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:14:52,096 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:14:52,096 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:14:52,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:14:52,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:14:52,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:14:52,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:14:52,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:14:52,098 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:14:52,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:14:52,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:14:52,099 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_03ef1dea-b27a-490e-8b66-d47a2064fb61/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dbc8f54f9c446babb02937902a9e0651922ee3ad3469ce820281714b321626f [2022-11-20 17:14:52,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:14:52,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:14:52,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:14:52,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:14:52,465 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:14:52,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/loop-simple/nested_1.c [2022-11-20 17:14:55,508 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:14:55,793 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:14:55,794 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/sv-benchmarks/c/loop-simple/nested_1.c [2022-11-20 17:14:55,801 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/data/1b3ba11ea/4172e4f170f64d70948ec263028cad14/FLAG77178039f [2022-11-20 17:14:55,828 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/data/1b3ba11ea/4172e4f170f64d70948ec263028cad14 [2022-11-20 17:14:55,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:14:55,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:14:55,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:14:55,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:14:55,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:14:55,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:55" (1/1) ... [2022-11-20 17:14:55,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b303525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:55, skipping insertion in model container [2022-11-20 17:14:55,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:55" (1/1) ... [2022-11-20 17:14:55,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:14:55,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:14:56,071 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_03ef1dea-b27a-490e-8b66-d47a2064fb61/sv-benchmarks/c/loop-simple/nested_1.c[676,689] [2022-11-20 17:14:56,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:14:56,085 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:14:56,101 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_03ef1dea-b27a-490e-8b66-d47a2064fb61/sv-benchmarks/c/loop-simple/nested_1.c[676,689] [2022-11-20 17:14:56,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:14:56,116 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:14:56,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56 WrapperNode [2022-11-20 17:14:56,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:14:56,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:14:56,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:14:56,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:14:56,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,152 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2022-11-20 17:14:56,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:14:56,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:14:56,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:14:56,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:14:56,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,178 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:14:56,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:14:56,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:14:56,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:14:56,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:14:56,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:14:56,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:14:56,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:14:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:14:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:14:56,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:14:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:14:56,342 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:14:56,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:14:56,448 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:14:56,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:14:56,473 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 17:14:56,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:56 BoogieIcfgContainer [2022-11-20 17:14:56,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:14:56,477 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:14:56,478 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:14:56,489 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:14:56,489 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:56" (1/1) ... [2022-11-20 17:14:56,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:14:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:14:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-20 17:14:56,571 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-11-20 17:14:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 17:14:56,574 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:14:56,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:14:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:14:56,788 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 17:14:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:14:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-11-20 17:14:56,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-20 17:14:56,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:14:56,853 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:14:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:14:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:14:56,885 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 17:14:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:14:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-11-20 17:14:56,906 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-20 17:14:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:14:56,906 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:14:56,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:14:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:14:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 17:14:57,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:14:57,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-11-20 17:14:57,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-20 17:14:57,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:14:57,041 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:14:57,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:14:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:14:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:14:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:14:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-20 17:14:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-20 17:14:57,271 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:14:57,272 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 17:14:57,283 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 17:14:57,314 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 17:14:57,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:14:57 ImpRootNode [2022-11-20 17:14:57,323 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:14:57,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:14:57,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:14:57,325 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:14:57,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:56" (3/4) ... [2022-11-20 17:14:57,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:14:57,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-20 17:14:57,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 17:14:57,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 17:14:57,338 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:14:57,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:14:57,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:14:57,371 INFO L158 Benchmark]: Toolchain (without parser) took 1535.25ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 103.6MB in the end (delta: 52.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-11-20 17:14:57,371 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 140.5MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:14:57,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.98ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 146.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 17:14:57,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.13ms. Allocated memory is still 186.6MB. Free memory was 146.3MB in the beginning and 144.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:14:57,373 INFO L158 Benchmark]: Boogie Preprocessor took 27.44ms. Allocated memory is still 186.6MB. Free memory was 144.8MB in the beginning and 144.2MB in the end (delta: 597.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:14:57,374 INFO L158 Benchmark]: RCFGBuilder took 295.07ms. Allocated memory is still 186.6MB. Free memory was 144.2MB in the beginning and 133.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 17:14:57,374 INFO L158 Benchmark]: CodeCheck took 846.22ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 105.7MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 17:14:57,375 INFO L158 Benchmark]: Witness Printer took 46.02ms. Allocated memory is still 186.6MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:14:57,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 87 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 0 mSDtfsCounter, 87 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/5 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 19]: Loop Invariant Derived loop invariant: 1 <= a || a == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 140.5MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.98ms. Allocated memory is still 186.6MB. Free memory was 155.8MB in the beginning and 146.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.13ms. Allocated memory is still 186.6MB. Free memory was 146.3MB in the beginning and 144.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.44ms. Allocated memory is still 186.6MB. Free memory was 144.8MB in the beginning and 144.2MB in the end (delta: 597.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.07ms. Allocated memory is still 186.6MB. Free memory was 144.2MB in the beginning and 133.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 846.22ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 105.7MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 46.02ms. Allocated memory is still 186.6MB. Free memory was 105.7MB in the beginning and 103.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:14:57,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03ef1dea-b27a-490e-8b66-d47a2064fb61/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