./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array09_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/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_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array09_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/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_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/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 4bb0671b4b3b34b0008c62cb06f9dde07e56c5dbf3071783b051c4e580038106 --- 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 17:46:29,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:46:29,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:46:29,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:46:29,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:46:29,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:46:29,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:46:29,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:46:29,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:46:29,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:46:29,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:46:29,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:46:29,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:46:29,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:46:29,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:46:29,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:46:29,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:46:29,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:46:29,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:46:29,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:46:29,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:46:29,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:46:29,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:46:29,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:46:29,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:46:29,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:46:29,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:46:29,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:46:29,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:46:29,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:46:29,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:46:29,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:46:29,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:46:29,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:46:29,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:46:29,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:46:29,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:46:29,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:46:29,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:46:29,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:46:29,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:46:29,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:46:29,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:46:29,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:46:29,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:46:29,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:46:29,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:46:29,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:46:29,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:46:29,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:46:29,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:46:29,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:46:29,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:46:29,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:46:29,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:46:29,972 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:46:29,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:46:29,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:46:29,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:46:29,973 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:46:29,973 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:46:29,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:46:29,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:46:29,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:46:29,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:46:29,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:46:29,974 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:46:29,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:46:29,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:46:29,975 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_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb0671b4b3b34b0008c62cb06f9dde07e56c5dbf3071783b051c4e580038106 [2022-11-20 17:46:30,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:46:30,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:46:30,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:46:30,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:46:30,263 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:46:30,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-15/array09_alloca.i [2022-11-20 17:46:33,348 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:46:33,636 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:46:33,637 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/sv-benchmarks/c/termination-15/array09_alloca.i [2022-11-20 17:46:33,647 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/data/80b018680/eddfeebc8e634a339a3d89653d04915c/FLAG831c8f43c [2022-11-20 17:46:33,666 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/data/80b018680/eddfeebc8e634a339a3d89653d04915c [2022-11-20 17:46:33,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:46:33,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:46:33,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:46:33,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:46:33,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:46:33,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:33" (1/1) ... [2022-11-20 17:46:33,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d76139c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:33, skipping insertion in model container [2022-11-20 17:46:33,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:46:33" (1/1) ... [2022-11-20 17:46:33,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:46:33,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:46:34,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:46:34,034 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:46:34,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:46:34,105 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:46:34,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34 WrapperNode [2022-11-20 17:46:34,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:46:34,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:46:34,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:46:34,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:46:34,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,152 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-11-20 17:46:34,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:46:34,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:46:34,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:46:34,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:46:34,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,199 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:46:34,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:46:34,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:46:34,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:46:34,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:46:34,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:46:34,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:46:34,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:46:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:46:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:46:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:46:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:46:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:46:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:46:34,399 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:46:34,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:46:34,596 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:46:34,674 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:46:34,675 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 17:46:34,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:46:34 BoogieIcfgContainer [2022-11-20 17:46:34,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:46:34,678 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:46:34,678 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:46:34,690 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:46:34,690 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:46:34" (1/1) ... [2022-11-20 17:46:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:46:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-11-20 17:46:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-20 17:46:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:46:34,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:35,252 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 17:46:35,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2022-11-20 17:46:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2022-11-20 17:46:35,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:46:35,351 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:35,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:35,488 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 17:46:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-11-20 17:46:35,581 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-20 17:46:35,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:46:35,583 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:35,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:35,695 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 17:46:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2022-11-20 17:46:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2022-11-20 17:46:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:46:35,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:35,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:35,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:46:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2022-11-20 17:46:36,255 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2022-11-20 17:46:36,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 17:46:36,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:36,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:46:36,483 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 17:46:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:46:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2022-11-20 17:46:36,717 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2022-11-20 17:46:36,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 17:46:36,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:46:36,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:46:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:46:36,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:46:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:46:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:46:36,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:46:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:46:36,804 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2022-11-20 17:46:36,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:46:36 ImpRootNode [2022-11-20 17:46:36,831 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:46:36,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:46:36,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:46:36,832 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:46:36,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:46:34" (3/4) ... [2022-11-20 17:46:36,835 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:46:36,872 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14f36ff-ea3f-4c6a-8e67-7a6f7366601d/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:46:36,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:46:36,873 INFO L158 Benchmark]: Toolchain (without parser) took 3203.07ms. Allocated memory was 136.3MB in the beginning and 205.5MB in the end (delta: 69.2MB). Free memory was 71.1MB in the beginning and 155.6MB in the end (delta: -84.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:46:36,874 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory was 105.5MB in the beginning and 105.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:46:36,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.47ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 70.9MB in the beginning and 129.6MB in the end (delta: -58.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-20 17:46:36,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.16ms. Allocated memory is still 169.9MB. Free memory was 129.6MB in the beginning and 127.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:46:36,876 INFO L158 Benchmark]: Boogie Preprocessor took 50.67ms. Allocated memory is still 169.9MB. Free memory was 127.5MB in the beginning and 126.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:46:36,876 INFO L158 Benchmark]: RCFGBuilder took 470.97ms. Allocated memory is still 169.9MB. Free memory was 126.2MB in the beginning and 112.8MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:46:36,877 INFO L158 Benchmark]: CodeCheck took 2153.31ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 112.8MB in the beginning and 157.7MB in the end (delta: -44.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:46:36,877 INFO L158 Benchmark]: Witness Printer took 40.81ms. Allocated memory is still 205.5MB. Free memory was 157.7MB in the beginning and 155.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:46:36,880 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, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 6 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 209 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 0/5 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 - CounterExampleResult [Line: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND TRUE length < 1 [L367] length = 1 [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=0, length=1] [L370] COND TRUE i -1) [L370] i++ VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=1, length=1] [L370] COND FALSE !(i