./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:01:37,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:01:37,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:01:37,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:01:37,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:01:37,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:01:37,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:01:37,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:01:37,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:01:37,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:01:37,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:01:37,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:01:37,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:01:37,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:01:37,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:01:37,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:01:37,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:01:37,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:01:37,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:01:37,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:01:37,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:01:37,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:01:37,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:01:37,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:01:37,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:01:37,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:01:37,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:01:37,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:01:37,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:01:37,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:01:37,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:01:37,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:01:37,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:01:37,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:01:37,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:01:37,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:01:37,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:01:37,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:01:37,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:01:37,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:01:37,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:01:37,589 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2021-11-23 15:01:37,613 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:01:37,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:01:37,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:01:37,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:01:37,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:01:37,616 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:01:37,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:01:37,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:01:37,617 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:01:37,617 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:01:37,617 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:01:37,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:01:37,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:01:37,618 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:01:37,618 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:01:37,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:01:37,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:37,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:01:37,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:01:37,619 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:01:37,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:01:37,619 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_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2021-11-23 15:01:37,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:01:37,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:01:37,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:01:37,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:01:37,950 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:01:37,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-11-23 15:01:38,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/data/2f8a82ade/724302853b1a4453a7fbf690aa9c56b4/FLAG891bc40e9 [2021-11-23 15:01:38,508 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:01:38,509 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-11-23 15:01:38,515 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/data/2f8a82ade/724302853b1a4453a7fbf690aa9c56b4/FLAG891bc40e9 [2021-11-23 15:01:38,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/data/2f8a82ade/724302853b1a4453a7fbf690aa9c56b4 [2021-11-23 15:01:38,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:01:38,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:01:38,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:38,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:01:38,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:01:38,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:38" (1/1) ... [2021-11-23 15:01:38,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce54bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:38, skipping insertion in model container [2021-11-23 15:01:38,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:38" (1/1) ... [2021-11-23 15:01:38,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:01:38,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:01:39,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:39,101 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:01:39,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:01:39,136 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:01:39,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39 WrapperNode [2021-11-23 15:01:39,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:01:39,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:39,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:01:39,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:01:39,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,176 INFO L137 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2021-11-23 15:01:39,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:01:39,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:01:39,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:01:39,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:01:39,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:01:39,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:01:39,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:01:39,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:01:39,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:01:39,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:01:39,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:01:39,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:01:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:01:39,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:01:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:01:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:01:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:01:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:01:39,396 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:01:39,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:01:39,517 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:01:39,535 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:01:39,536 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 15:01:39,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:39 BoogieIcfgContainer [2021-11-23 15:01:39,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:01:39,539 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:01:39,539 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:01:39,549 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:01:39,549 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:39" (1/1) ... [2021-11-23 15:01:39,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:01:39,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2021-11-23 15:01:39,614 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-23 15:01:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:01:39,616 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:39,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:39,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2021-11-23 15:01:39,850 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-23 15:01:39,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:01:39,850 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:39,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:39,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-11-23 15:01:40,002 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-23 15:01:40,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:01:40,005 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-23 15:01:40,088 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-23 15:01:40,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:01:40,088 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-11-23 15:01:40,273 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-23 15:01:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:01:40,273 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2021-11-23 15:01:40,332 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-11-23 15:01:40,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 15:01:40,332 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2021-11-23 15:01:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-11-23 15:01:40,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:01:40,380 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-23 15:01:40,689 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-23 15:01:40,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:01:40,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-11-23 15:01:40,736 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-23 15:01:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:01:40,737 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-23 15:01:40,780 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-23 15:01:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:01:40,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-11-23 15:01:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-23 15:01:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:01:40,820 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 15:01:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2021-11-23 15:01:40,891 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-23 15:01:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:01:40,891 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:01:40,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:01:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:01:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 15:01:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:01:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-23 15:01:40,995 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-23 15:01:40,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 15:01:40,996 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2021-11-23 15:01:41,008 INFO L754 CodeCheckObserver]: All specifications hold 11 specifications checked. All of them hold [2021-11-23 15:01:41,067 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 15:01:41,078 INFO L560 CodeCheckObserver]: Invariant with dag size 17 [2021-11-23 15:01:41,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:01:41 ImpRootNode [2021-11-23 15:01:41,083 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:01:41,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:01:41,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:01:41,085 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:01:41,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:39" (3/4) ... [2021-11-23 15:01:41,089 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 15:01:41,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 15:01:41,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 15:01:41,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 15:01:41,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 15:01:41,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((a + 12 <= unknown-#length-unknown[a] && a == 0) && \valid[a] == 1) && \old(unknown-main_\old_#valid#1-unknown) == \valid[a := 0] [2021-11-23 15:01:41,135 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2021-11-23 15:01:41,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:01:41,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:01:41,162 INFO L158 Benchmark]: Toolchain (without parser) took 2252.47ms. Allocated memory is still 92.3MB. Free memory was 58.5MB in the beginning and 30.9MB in the end (delta: 27.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-11-23 15:01:41,163 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:41,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.44ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 70.1MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:01:41,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.32ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:41,169 INFO L158 Benchmark]: Boogie Preprocessor took 51.96ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.6MB in the end (delta: 841.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:01:41,170 INFO L158 Benchmark]: RCFGBuilder took 306.42ms. Allocated memory is still 92.3MB. Free memory was 67.6MB in the beginning and 57.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:01:41,170 INFO L158 Benchmark]: CodeCheck took 1544.26ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 33.3MB in the end (delta: 23.8MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-11-23 15:01:41,171 INFO L158 Benchmark]: Witness Printer took 77.14ms. Allocated memory is still 92.3MB. Free memory was 33.3MB in the beginning and 30.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:01:41,184 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, 21 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 539 IncrementalHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 58 mSDtfsCounter, 539 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 480 GetRequests, 444 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 2/2 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: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: \old(unknown-main_\old_#valid#1-unknown) == \valid - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((a + 12 <= unknown-#length-unknown[a] && a == 0) && \valid[a] == 1) && \old(unknown-main_\old_#valid#1-unknown) == \valid[a := 0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 31.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.44ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 70.1MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.32ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.96ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 67.6MB in the end (delta: 841.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.42ms. Allocated memory is still 92.3MB. Free memory was 67.6MB in the beginning and 57.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1544.26ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 33.3MB in the end (delta: 23.8MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 77.14ms. Allocated memory is still 92.3MB. Free memory was 33.3MB in the beginning and 30.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 15:01:41,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e8c69f3-5ee1-47bd-8452-01fe6a7323a7/bin/ukojak-CwSLpZB5Qu/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