./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/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_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/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_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/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 ffd6e9554cad43049f3baa89c0ba2bf94011d3e069a47b1754df8be10679286a --- 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 23:57:14,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:57:14,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:57:14,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:57:14,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:57:14,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:57:14,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:57:14,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:57:14,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:57:14,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:57:14,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:57:14,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:57:14,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:57:14,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:57:14,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:57:14,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:57:14,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:57:14,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:57:14,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:57:14,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:57:14,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:57:14,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:57:14,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:57:14,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:57:14,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:57:14,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:57:14,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:57:14,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:57:14,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:57:14,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:57:14,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:57:14,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:57:14,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:57:14,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:57:14,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:57:14,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:57:14,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:57:14,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:57:14,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:57:14,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:57:14,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:57:14,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:57:14,580 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:57:14,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:57:14,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:57:14,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:57:14,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:57:14,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:57:14,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:57:14,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:57:14,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:57:14,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:57:14,585 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:57:14,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:57:14,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:57:14,585 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:57:14,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:57:14,586 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:57:14,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:57:14,586 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:57:14,586 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:57:14,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:57:14,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:57:14,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:57:14,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:57:14,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:57:14,588 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:57:14,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:57:14,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:57:14,588 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_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffd6e9554cad43049f3baa89c0ba2bf94011d3e069a47b1754df8be10679286a [2022-11-21 23:57:14,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:57:14,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:57:14,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:57:14,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:57:14,968 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:57:14,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i [2022-11-21 23:57:18,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:57:18,341 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:57:18,341 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/sv-benchmarks/c/termination-memory-alloca/c.03-alloca-1.i [2022-11-21 23:57:18,351 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/data/0774c2c31/3a5b549527894aba88ad67cd1348f981/FLAG43f119615 [2022-11-21 23:57:18,365 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/data/0774c2c31/3a5b549527894aba88ad67cd1348f981 [2022-11-21 23:57:18,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:57:18,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:57:18,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:57:18,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:57:18,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:57:18,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4ff8a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18, skipping insertion in model container [2022-11-21 23:57:18,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:57:18,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:57:18,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:57:18,679 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:57:18,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:57:18,738 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:57:18,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18 WrapperNode [2022-11-21 23:57:18,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:57:18,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:57:18,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:57:18,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:57:18,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,782 INFO L138 Inliner]: procedures = 111, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2022-11-21 23:57:18,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:57:18,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:57:18,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:57:18,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:57:18,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:57:18,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:57:18,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:57:18,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:57:18,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:57:18" (1/1) ... [2022-11-21 23:57:18,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:57:18,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:57:18,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:57:18,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:57:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 23:57:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 23:57:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 23:57:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:57:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:57:18,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:57:19,035 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:57:19,037 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:57:19,264 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:57:19,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:57:19,329 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 23:57:19,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:57:19 BoogieIcfgContainer [2022-11-21 23:57:19,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:57:19,337 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:57:19,337 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:57:19,347 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:57:19,347 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:57:19" (1/1) ... [2022-11-21 23:57:19,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:57:19,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:19,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-11-21 23:57:19,409 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-21 23:57:19,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 23:57:19,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:57:19,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:57:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:57:20,192 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 23:57:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2022-11-21 23:57:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-21 23:57:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 23:57:20,319 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:57:20,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:57:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:57:20,556 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 23:57:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:20,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-11-21 23:57:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-21 23:57:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 23:57:20,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:57:20,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:57:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:57:21,827 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 23:57:22,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:22,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2022-11-21 23:57:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-11-21 23:57:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 23:57:22,405 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:57:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:57:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:57:22,663 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 23:57:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:23,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2022-11-21 23:57:23,514 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2022-11-21 23:57:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 23:57:23,516 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:57:23,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:57:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:57:23,933 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 23:57:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 48 transitions. [2022-11-21 23:57:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 48 transitions. [2022-11-21 23:57:25,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 23:57:25,737 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:57:25,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:57:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:57:26,091 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 23:57:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:57:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-11-21 23:57:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-21 23:57:27,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:57:27,791 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-11-21 23:57:27,800 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 23:57:27,872 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:57:27,877 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2022-11-21 23:57:27,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:57:27 ImpRootNode [2022-11-21 23:57:27,888 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:57:27,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:57:27,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:57:27,890 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:57:27,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:57:19" (3/4) ... [2022-11-21 23:57:27,894 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:57:27,916 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-21 23:57:27,919 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 23:57:27,921 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 23:57:27,921 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:57:27,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:57:27,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:57:27,990 INFO L158 Benchmark]: Toolchain (without parser) took 9620.08ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 104.7MB in the beginning and 110.1MB in the end (delta: -5.4MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-11-21 23:57:27,991 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 151.0MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:57:27,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.67ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 89.1MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 23:57:27,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.70ms. Allocated memory is still 151.0MB. Free memory was 89.1MB in the beginning and 87.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:57:27,992 INFO L158 Benchmark]: Boogie Preprocessor took 26.18ms. Allocated memory is still 151.0MB. Free memory was 87.0MB in the beginning and 85.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:57:27,993 INFO L158 Benchmark]: RCFGBuilder took 525.71ms. Allocated memory is still 151.0MB. Free memory was 85.8MB in the beginning and 71.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:57:27,993 INFO L158 Benchmark]: CodeCheck took 8551.57ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 70.8MB in the beginning and 113.2MB in the end (delta: -42.4MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-21 23:57:27,993 INFO L158 Benchmark]: Witness Printer took 99.30ms. Allocated memory is still 197.1MB. Free memory was 113.2MB in the beginning and 110.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:57:27,999 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: 8.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 17 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 470 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3800 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 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: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: 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: 557]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (0 <= unknown-#memory_int-unknown[x_ref][x_ref] + 2147483648 && (z_ref == x_ref || !(z_ref == x_ref))) && 0 <= unknown-#memory_int-unknown[z_ref][z_ref] + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 151.0MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.67ms. Allocated memory is still 151.0MB. Free memory was 104.7MB in the beginning and 89.1MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.70ms. Allocated memory is still 151.0MB. Free memory was 89.1MB in the beginning and 87.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.18ms. Allocated memory is still 151.0MB. Free memory was 87.0MB in the beginning and 85.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 525.71ms. Allocated memory is still 151.0MB. Free memory was 85.8MB in the beginning and 71.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 8551.57ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 70.8MB in the beginning and 113.2MB in the end (delta: -42.4MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Witness Printer took 99.30ms. Allocated memory is still 197.1MB. Free memory was 113.2MB in the beginning and 110.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 23:57:28,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdd2bc59-6c9b-471e-a85e-8eff6f908dd7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE