./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/cmp-freed-ptr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/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_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/cmp-freed-ptr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/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 32bit --witnessprinter.graph.data.programhash 63302b5441ba85cd38f4ed3669bf40852137e8be39297cc19159731ba051a536 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:52:52,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:52:52,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:52:52,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:52:52,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:52:52,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:52:52,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:52:52,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:52:52,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:52:52,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:52:52,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:52:52,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:52:52,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:52:52,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:52:52,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:52:52,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:52:52,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:52:52,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:52:52,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:52:52,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:52:52,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:52:52,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:52:52,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:52:52,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:52:52,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:52:52,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:52:52,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:52:52,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:52:52,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:52:52,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:52:52,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:52:52,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:52:52,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:52:52,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:52:52,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:52:52,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:52:52,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:52:52,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:52:52,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:52:52,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:52:52,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:52:52,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:52:52,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:52:52,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:52:52,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:52:52,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:52:52,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:52:52,617 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:52:52,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:52:52,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:52:52,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:52:52,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:52:52,620 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:52:52,626 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:52:52,626 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:52:52,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:52:52,627 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:52:52,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:52:52,627 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:52:52,627 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:52:52,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:52:52,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:52:52,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:52:52,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:52:52,629 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:52:52,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:52:52,629 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_a238c207-49de-434c-8496-565c838d6c55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63302b5441ba85cd38f4ed3669bf40852137e8be39297cc19159731ba051a536 [2021-11-23 15:52:52,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:52:52,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:52:52,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:52:52,970 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:52:52,971 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:52:52,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/memsafety/cmp-freed-ptr.i [2021-11-23 15:52:53,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/data/2b5775e6e/4d1ccace65f247f7b2a1c7908e8f4c66/FLAG195e9abe0 [2021-11-23 15:52:53,652 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:52:53,655 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/sv-benchmarks/c/memsafety/cmp-freed-ptr.i [2021-11-23 15:52:53,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/data/2b5775e6e/4d1ccace65f247f7b2a1c7908e8f4c66/FLAG195e9abe0 [2021-11-23 15:52:53,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/data/2b5775e6e/4d1ccace65f247f7b2a1c7908e8f4c66 [2021-11-23 15:52:53,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:52:53,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:52:53,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:52:53,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:52:53,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:52:53,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:53" (1/1) ... [2021-11-23 15:52:53,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5735bb82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:53, skipping insertion in model container [2021-11-23 15:52:53,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:53" (1/1) ... [2021-11-23 15:52:54,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:52:54,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:52:54,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:52:54,400 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:52:54,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:52:54,484 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:52:54,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54 WrapperNode [2021-11-23 15:52:54,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:52:54,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:52:54,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:52:54,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:52:54,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,544 INFO L137 Inliner]: procedures = 112, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-11-23 15:52:54,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:52:54,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:52:54,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:52:54,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:52:54,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:52:54,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:52:54,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:52:54,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:52:54,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:54" (1/1) ... [2021-11-23 15:52:54,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:52:54,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:52:54,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:52:54,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:52:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:52:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:52:54,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:52:54,824 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:52:54,825 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:52:55,033 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:52:55,047 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:52:55,047 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 15:52:55,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:55 BoogieIcfgContainer [2021-11-23 15:52:55,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:52:55,050 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:52:55,050 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:52:55,060 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:52:55,061 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:55" (1/1) ... [2021-11-23 15:52:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:52:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-11-23 15:52:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-11-23 15:52:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 15:52:55,129 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:55,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:55,284 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 15:52:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:55,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-23 15:52:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-23 15:52:55,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:52:55,308 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:55,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:55,340 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 15:52:55,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:55,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 15:52:55,402 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 15:52:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 15:52:55,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:55,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:55,445 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 15:52:55,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:55,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-23 15:52:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-23 15:52:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:52:55,643 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:55,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:55,731 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 15:52:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 15:52:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 15:52:55,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 15:52:55,767 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:55,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:55,814 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 15:52:55,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-23 15:52:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-23 15:52:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:52:55,829 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:55,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:55,902 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 15:52:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-23 15:52:56,032 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-23 15:52:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 15:52:56,033 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:56,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:56,094 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 15:52:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 15:52:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 15:52:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:52:56,117 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:56,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:56,176 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 15:52:56,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-11-23 15:52:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-11-23 15:52:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 15:52:56,461 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:56,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:56,497 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 15:52:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-11-23 15:52:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-11-23 15:52:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:52:56,525 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:56,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:56,684 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 15:52:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:57,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-11-23 15:52:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-11-23 15:52:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 15:52:57,621 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:57,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:57,660 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 15:52:57,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-23 15:52:57,860 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-23 15:52:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 15:52:57,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:57,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 15:52:57,878 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 15:52:57,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:52:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-23 15:52:57,947 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-23 15:52:57,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 15:52:57,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:52:57,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:52:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:52:57,958 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 15:52:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:52:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:52:57,998 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 15:52:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:52:58,025 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 13 iterations. [2021-11-23 15:52:58,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:52:58 ImpRootNode [2021-11-23 15:52:58,085 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:52:58,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:52:58,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:52:58,086 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:52:58,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:55" (3/4) ... [2021-11-23 15:52:58,088 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 15:52:58,156 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:52:58,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:52:58,161 INFO L158 Benchmark]: Toolchain (without parser) took 4187.86ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 58.8MB in the beginning and 68.2MB in the end (delta: -9.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,161 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:52:58,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.80ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 61.0MB in the end (delta: -2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.92ms. Allocated memory is still 90.2MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,167 INFO L158 Benchmark]: Boogie Preprocessor took 42.80ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 58.2MB in the end (delta: 897.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,168 INFO L158 Benchmark]: RCFGBuilder took 461.06ms. Allocated memory is still 90.2MB. Free memory was 58.2MB in the beginning and 48.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,168 INFO L158 Benchmark]: CodeCheck took 3034.81ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 48.0MB in the beginning and 70.3MB in the end (delta: -22.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,170 INFO L158 Benchmark]: Witness Printer took 74.12ms. Allocated memory is still 121.6MB. Free memory was 70.3MB in the beginning and 68.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:52:58,176 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, 23 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, 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, 256 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 234 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 633 IncrementalHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 234 mSolverCounterUnsat, 36 mSDtfsCounter, 633 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 542 GetRequests, 462 SyntacticMatches, 6 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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: 554]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L543] struct T* x = ((void *)0); [L544] struct T* y = ((void *)0); [L545] y = malloc(sizeof(*y)) [L546] intptr_t adressY = (intptr_t) y; VAL [adressY=-1, x={0:0}, y={-1:0}] [L547] free(y) VAL [adressY=-1, x={0:0}, y={-1:0}] [L547] free(y) VAL [adressY=-1, x={0:0}, y={-1:0}] [L547] free(y) [L548] x = malloc(sizeof(*x)) [L549] intptr_t adressX = (intptr_t) x; VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] [L550] COND TRUE adressX == adressY VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] [L552] free(x) VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] [L552] free(x) VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] [L552] free(x) [L554] free(x) VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] [L554] free(x) VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] [L554] free(x) VAL [adressX=-1, adressY=-1, x={-1:0}, y={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.80ms. Allocated memory is still 90.2MB. Free memory was 58.6MB in the beginning and 61.0MB in the end (delta: -2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.92ms. Allocated memory is still 90.2MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.80ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 58.2MB in the end (delta: 897.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.06ms. Allocated memory is still 90.2MB. Free memory was 58.2MB in the beginning and 48.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3034.81ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 48.0MB in the beginning and 70.3MB in the end (delta: -22.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 74.12ms. Allocated memory is still 121.6MB. Free memory was 70.3MB in the beginning and 68.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 15:52:58,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a238c207-49de-434c-8496-565c838d6c55/bin/ukojak-CwSLpZB5Qu/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)