./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg --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 f1855ccd5ef0c8491e97368f082ce5aab941ff0c5bf681c3496fd6584d783f6d --- 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-b5237d8 [2022-11-21 22:25:37,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:25:37,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:25:37,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:25:37,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:25:37,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:25:37,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:25:37,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:25:37,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:25:37,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:25:37,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:25:37,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:25:37,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:25:37,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:25:37,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:25:37,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:25:37,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:25:37,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:25:37,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:25:37,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:25:37,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:25:37,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:25:37,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:25:37,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:25:37,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:25:37,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:25:37,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:25:37,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:25:37,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:25:37,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:25:37,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:25:37,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:25:37,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:25:37,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:25:37,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:25:37,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:25:37,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:25:37,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:25:37,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:25:37,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:25:37,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:25:37,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:25:37,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:25:37,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:25:37,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:25:37,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:25:37,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:25:37,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:25:37,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:25:37,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:25:37,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:25:37,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:25:37,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:25:37,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:25:37,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:25:37,714 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:25:37,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:25:37,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:25:37,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:25:37,715 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:25:37,716 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:25:37,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:25:37,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:25:37,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:25:37,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:25:37,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:25:37,718 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:25:37,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:25:37,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:25:37,719 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_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1855ccd5ef0c8491e97368f082ce5aab941ff0c5bf681c3496fd6584d783f6d [2022-11-21 22:25:38,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:25:38,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:25:38,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:25:38,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:25:38,097 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:25:38,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2022-11-21 22:25:41,167 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:25:41,469 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:25:41,469 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2022-11-21 22:25:41,480 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/data/8e81ebbde/7111d23992fd45c28e2da1635f8c6897/FLAG2624b1b42 [2022-11-21 22:25:41,495 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/data/8e81ebbde/7111d23992fd45c28e2da1635f8c6897 [2022-11-21 22:25:41,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:25:41,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:25:41,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:25:41,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:25:41,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:25:41,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:41,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d25836a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41, skipping insertion in model container [2022-11-21 22:25:41,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:41,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:25:41,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:25:41,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:25:41,878 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:25:41,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:25:41,974 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:25:41,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41 WrapperNode [2022-11-21 22:25:41,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:25:41,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:25:41,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:25:41,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:25:41,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:41,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,014 INFO L138 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-21 22:25:42,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:25:42,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:25:42,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:25:42,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:25:42,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:25:42,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:25:42,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:25:42,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:25:42,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:41" (1/1) ... [2022-11-21 22:25:42,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:25:42,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:25:42,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:25:42,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:25:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 22:25:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 22:25:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:25:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:25:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:25:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:25:42,312 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:25:42,315 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:25:42,579 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:25:42,663 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:25:42,664 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 22:25:42,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:42 BoogieIcfgContainer [2022-11-21 22:25:42,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:25:42,668 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:25:42,668 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:25:42,679 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:25:42,680 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:42" (1/1) ... [2022-11-21 22:25:42,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:25:42,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:42,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2022-11-21 22:25:42,753 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2022-11-21 22:25:42,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 22:25:42,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2022-11-21 22:25:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2022-11-21 22:25:44,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:25:44,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2022-11-21 22:25:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2022-11-21 22:25:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 22:25:44,481 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:45,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 23 states and 40 transitions. [2022-11-21 22:25:45,375 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 40 transitions. [2022-11-21 22:25:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 22:25:45,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:45,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 25 states and 44 transitions. [2022-11-21 22:25:45,677 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 44 transitions. [2022-11-21 22:25:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 22:25:45,678 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:45,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 26 states and 48 transitions. [2022-11-21 22:25:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 48 transitions. [2022-11-21 22:25:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:25:46,715 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:46,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:46,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:47,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 27 states and 53 transitions. [2022-11-21 22:25:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 53 transitions. [2022-11-21 22:25:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:25:47,144 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:47,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:47,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 28 states and 51 transitions. [2022-11-21 22:25:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 51 transitions. [2022-11-21 22:25:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 22:25:47,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:47,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:25:49,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 60 transitions. [2022-11-21 22:25:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2022-11-21 22:25:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 22:25:49,732 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 37 states and 66 transitions. [2022-11-21 22:25:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 66 transitions. [2022-11-21 22:25:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 22:25:51,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:25:51,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:25:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:25:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:25:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:25:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-11-21 22:25:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-21 22:25:51,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:25:51,439 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2022-11-21 22:25:51,448 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 22:25:51,516 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2022-11-21 22:25:51,531 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:25:51,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:25:51 ImpRootNode [2022-11-21 22:25:51,532 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:25:51,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:25:51,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:25:51,535 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:25:51,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:42" (3/4) ... [2022-11-21 22:25:51,542 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:25:51,569 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-21 22:25:51,570 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 22:25:51,571 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 22:25:51,572 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:25:51,628 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:25:51,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:25:51,632 INFO L158 Benchmark]: Toolchain (without parser) took 10133.16ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 110.9MB in the beginning and 123.7MB in the end (delta: -12.8MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,633 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 142.6MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:25:51,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.51ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 94.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.03ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 92.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,635 INFO L158 Benchmark]: Boogie Preprocessor took 24.45ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 91.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,640 INFO L158 Benchmark]: RCFGBuilder took 626.87ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 77.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,640 INFO L158 Benchmark]: CodeCheck took 8865.30ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 77.8MB in the beginning and 125.7MB in the end (delta: -47.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,641 INFO L158 Benchmark]: Witness Printer took 97.71ms. Allocated memory is still 207.6MB. Free memory was 125.7MB in the beginning and 123.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:25:51,643 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 326 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1409 IncrementalHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 326 mSolverCounterUnsat, 42 mSDtfsCounter, 1409 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 988 GetRequests, 847 SyntacticMatches, 15 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6358 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 16/22 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: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 560]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (!(y_ref == x_ref) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 142.6MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.51ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 94.9MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.03ms. Allocated memory is still 142.6MB. Free memory was 94.9MB in the beginning and 92.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.45ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 91.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.87ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 77.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 8865.30ms. Allocated memory was 142.6MB in the beginning and 207.6MB in the end (delta: 65.0MB). Free memory was 77.8MB in the beginning and 125.7MB in the end (delta: -47.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Witness Printer took 97.71ms. Allocated memory is still 207.6MB. Free memory was 125.7MB in the beginning and 123.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:25:51,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c7f25c2-5698-4fbb-a9b7-052ff3fcab15/bin/ukojak-jW3SillKbg/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