./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/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_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/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_2070da4b-5ffd-435b-80fc-894477d3235a/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 426ef1f4309d9dc2735a49adbb003bde9d9b1a56bbe25c12fae7f655f97fb3a3 --- 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 17:57:10,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:57:10,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:57:10,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:57:10,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:57:10,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:57:10,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:57:10,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:57:10,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:57:10,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:57:10,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:57:10,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:57:10,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:57:10,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:57:10,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:57:10,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:57:10,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:57:10,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:57:10,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:57:10,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:57:10,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:57:10,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:57:10,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:57:10,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:57:10,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:57:10,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:57:10,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:57:10,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:57:10,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:57:10,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:57:10,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:57:10,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:57:10,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:57:10,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:57:10,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:57:10,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:57:10,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:57:10,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:57:10,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:57:10,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:57:10,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:57:10,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:57:10,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:57:10,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:57:10,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:57:10,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:57:10,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:57:10,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:57:10,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:57:10,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:57:10,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:57:10,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:57:10,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:57:10,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:57:10,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:57:10,624 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:57:10,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:57:10,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:57:10,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:57:10,625 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:57:10,625 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:57:10,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:57:10,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:57:10,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:57:10,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:57:10,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:57:10,626 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:57:10,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:57:10,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:57:10,627 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_2070da4b-5ffd-435b-80fc-894477d3235a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 426ef1f4309d9dc2735a49adbb003bde9d9b1a56bbe25c12fae7f655f97fb3a3 [2022-11-20 17:57:10,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:57:10,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:57:10,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:57:10,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:57:10,982 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:57:10,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i [2022-11-20 17:57:14,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:57:14,233 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:57:14,234 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig8-alloca-2.i [2022-11-20 17:57:14,247 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/data/cf45fdeed/464d7d7d552244cbbbb1a784d7952383/FLAG683557d99 [2022-11-20 17:57:14,262 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/data/cf45fdeed/464d7d7d552244cbbbb1a784d7952383 [2022-11-20 17:57:14,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:57:14,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:57:14,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:57:14,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:57:14,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:57:14,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e7c867e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14, skipping insertion in model container [2022-11-20 17:57:14,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:57:14,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:57:14,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:57:14,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:57:14,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:57:14,819 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:57:14,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14 WrapperNode [2022-11-20 17:57:14,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:57:14,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:57:14,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:57:14,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:57:14,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,873 INFO L138 Inliner]: procedures = 110, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2022-11-20 17:57:14,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:57:14,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:57:14,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:57:14,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:57:14,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:57:14,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:57:14,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:57:14,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:57:14,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:57:14" (1/1) ... [2022-11-20 17:57:14,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:57:14,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:57:14,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:57:14,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:57:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:57:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:57:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:57:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:57:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:57:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:57:15,131 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:57:15,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:57:15,413 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:57:15,457 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:57:15,458 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 17:57:15,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:57:15 BoogieIcfgContainer [2022-11-20 17:57:15,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:57:15,462 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:57:15,462 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:57:15,472 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:57:15,472 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:57:15" (1/1) ... [2022-11-20 17:57:15,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:57:15,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:57:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2022-11-20 17:57:15,540 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-20 17:57:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:57:15,542 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:57:15,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:57:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:57:17,630 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 17:57:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:57:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2022-11-20 17:57:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-20 17:57:17,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:57:17,705 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:57:17,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:57:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:57:18,913 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 17:57:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:57:18,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2022-11-20 17:57:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-20 17:57:18,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:57:18,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:57:18,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:57:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:58:28,168 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 17:58:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:58:28,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 32 states and 42 transitions. [2022-11-20 17:58:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-11-20 17:58:28,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:58:28,472 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:58:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:58:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:29,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:58:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:31,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 17:58:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 17:58:31,462 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-11-20 17:58:31,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:58:31 ImpRootNode [2022-11-20 17:58:31,496 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:58:31,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:58:31,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:58:31,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:58:31,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:57:15" (3/4) ... [2022-11-20 17:58:31,500 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 17:58:31,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:58:31,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:58:31,545 INFO L158 Benchmark]: Toolchain (without parser) took 77278.95ms. Allocated memory was 157.3MB in the beginning and 1.0GB in the end (delta: 866.1MB). Free memory was 116.8MB in the beginning and 618.2MB in the end (delta: -501.4MB). Peak memory consumption was 363.2MB. Max. memory is 16.1GB. [2022-11-20 17:58:31,546 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:58:31,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.25ms. Allocated memory is still 157.3MB. Free memory was 116.8MB in the beginning and 118.8MB in the end (delta: -2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:58:31,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.49ms. Allocated memory is still 157.3MB. Free memory was 118.1MB in the beginning and 116.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:58:31,548 INFO L158 Benchmark]: Boogie Preprocessor took 31.50ms. Allocated memory is still 157.3MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:58:31,548 INFO L158 Benchmark]: RCFGBuilder took 551.62ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 97.8MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 17:58:31,549 INFO L158 Benchmark]: CodeCheck took 76034.76ms. Allocated memory was 157.3MB in the beginning and 1.0GB in the end (delta: 866.1MB). Free memory was 97.2MB in the beginning and 621.4MB in the end (delta: -524.2MB). Peak memory consumption was 343.6MB. Max. memory is 16.1GB. [2022-11-20 17:58:31,549 INFO L158 Benchmark]: Witness Printer took 48.07ms. Allocated memory is still 1.0GB. Free memory was 621.4MB in the beginning and 618.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:58:31,552 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, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 76.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 8 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 70.6s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 568]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int* u = __builtin_alloca (sizeof(int)); [L549] int* x = __builtin_alloca (sizeof(int)); [L550] int* v = __builtin_alloca (sizeof(int)); [L551] int* y = __builtin_alloca (sizeof(int)); [L552] int* w = __builtin_alloca (sizeof(int)); [L553] int* z = __builtin_alloca (sizeof(int)); [L554] int* c = __builtin_alloca (sizeof(int)); [L555] *x = __VERIFIER_nondet_int() [L556] *y = __VERIFIER_nondet_int() [L557] *z = __VERIFIER_nondet_int() [L558] EXPR \read(*x) [L558] *u = *x [L559] EXPR \read(*y) [L559] *v = *y [L560] EXPR \read(*z) [L560] *w = *z [L561] *c = 0 VAL [__builtin_alloca (sizeof(int))={29163:0}, __builtin_alloca (sizeof(int))={29166:0}, __builtin_alloca (sizeof(int))={29167:0}, __builtin_alloca (sizeof(int))={29162:0}, __builtin_alloca (sizeof(int))={29165:0}, __builtin_alloca (sizeof(int))={29168:0}, __builtin_alloca (sizeof(int))={29169:0}, c={29162:0}, u={29167:0}, v={29163:0}, w={29168:0}, x={29165:0}, y={29166:0}, z={29169:0}] [L562] EXPR \read(*x) [L562] EXPR \read(*y) VAL [\read(*x)=2147483647, \read(*y)=2147483647, __builtin_alloca (sizeof(int))={29163:0}, __builtin_alloca (sizeof(int))={29166:0}, __builtin_alloca (sizeof(int))={29167:0}, __builtin_alloca (sizeof(int))={29162:0}, __builtin_alloca (sizeof(int))={29165:0}, __builtin_alloca (sizeof(int))={29168:0}, __builtin_alloca (sizeof(int))={29169:0}, c={29162:0}, u={29167:0}, v={29163:0}, w={29168:0}, x={29165:0}, y={29166:0}, z={29169:0}] [L562] COND TRUE *x >= *y [L563] EXPR \read(*c) VAL [\read(*c)=0, __builtin_alloca (sizeof(int))={29163:0}, __builtin_alloca (sizeof(int))={29166:0}, __builtin_alloca (sizeof(int))={29167:0}, __builtin_alloca (sizeof(int))={29162:0}, __builtin_alloca (sizeof(int))={29165:0}, __builtin_alloca (sizeof(int))={29168:0}, __builtin_alloca (sizeof(int))={29169:0}, c={29162:0}, u={29167:0}, v={29163:0}, w={29168:0}, x={29165:0}, y={29166:0}, z={29169:0}] [L563] EXPR *c + 1 [L563] *c = *c + 1 [L564] EXPR \read(*z) VAL [\read(*z)=1, __builtin_alloca (sizeof(int))={29163:0}, __builtin_alloca (sizeof(int))={29166:0}, __builtin_alloca (sizeof(int))={29167:0}, __builtin_alloca (sizeof(int))={29162:0}, __builtin_alloca (sizeof(int))={29165:0}, __builtin_alloca (sizeof(int))={29168:0}, __builtin_alloca (sizeof(int))={29169:0}, c={29162:0}, u={29167:0}, v={29163:0}, w={29168:0}, x={29165:0}, y={29166:0}, z={29169:0}] [L564] COND FALSE !(*z > 1) [L568] EXPR \read(*y) VAL [\read(*y)=2147483647, __builtin_alloca (sizeof(int))={29163:0}, __builtin_alloca (sizeof(int))={29166:0}, __builtin_alloca (sizeof(int))={29167:0}, __builtin_alloca (sizeof(int))={29162:0}, __builtin_alloca (sizeof(int))={29165:0}, __builtin_alloca (sizeof(int))={29168:0}, __builtin_alloca (sizeof(int))={29169:0}, c={29162:0}, u={29167:0}, v={29163:0}, w={29168:0}, x={29165:0}, y={29166:0}, z={29169:0}] [L568] *y + 1 VAL [\read(*y)=2147483647, __builtin_alloca (sizeof(int))={29163:0}, __builtin_alloca (sizeof(int))={29166:0}, __builtin_alloca (sizeof(int))={29167:0}, __builtin_alloca (sizeof(int))={29162:0}, __builtin_alloca (sizeof(int))={29165:0}, __builtin_alloca (sizeof(int))={29168:0}, __builtin_alloca (sizeof(int))={29169:0}, c={29162:0}, u={29167:0}, v={29163:0}, w={29168:0}, x={29165:0}, y={29166:0}, z={29169:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.25ms. Allocated memory is still 157.3MB. Free memory was 116.8MB in the beginning and 118.8MB in the end (delta: -2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.49ms. Allocated memory is still 157.3MB. Free memory was 118.1MB in the beginning and 116.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.50ms. Allocated memory is still 157.3MB. Free memory was 116.7MB in the beginning and 115.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.62ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 97.8MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 76034.76ms. Allocated memory was 157.3MB in the beginning and 1.0GB in the end (delta: 866.1MB). Free memory was 97.2MB in the beginning and 621.4MB in the end (delta: -524.2MB). Peak memory consumption was 343.6MB. Max. memory is 16.1GB. * Witness Printer took 48.07ms. Allocated memory is still 1.0GB. Free memory was 621.4MB in the beginning and 618.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 17:58:31,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2070da4b-5ffd-435b-80fc-894477d3235a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)