./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak --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 702f633b7e7ff05b6cbb070b8858a8adcd841273 ................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:32:52,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:52,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:52,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:52,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:52,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:52,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:52,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:52,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:52,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:52,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:52,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:52,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:52,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:52,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:52,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:52,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:52,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:52,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:52,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:52,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:52,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:52,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:52,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:52,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:52,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:52,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:52,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:52,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:52,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:52,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:52,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:52,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:52,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:52,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:52,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:52,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:52,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:52,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:52,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:52,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:52,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:32:52,606 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:52,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:52,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:52,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:52,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:52,609 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:52,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:32:52,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:52,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:52,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:52,611 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:32:52,611 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:32:52,612 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:32:52,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:52,612 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:52,612 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:52,612 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:52,613 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:52,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:52,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:52,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:52,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:52,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:52,614 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:52,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:52,614 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-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702f633b7e7ff05b6cbb070b8858a8adcd841273 [2020-11-28 04:32:52,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:52,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:52,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:52,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:52,974 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:52,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2020-11-28 04:32:53,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/data/39ab9a5dc/2b43de0592f94e9396341703c367f257/FLAG17f286c72 [2020-11-28 04:32:53,585 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:53,586 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/sv-benchmarks/c/ldv-memsafety/memleaks_test21-2.i [2020-11-28 04:32:53,602 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/data/39ab9a5dc/2b43de0592f94e9396341703c367f257/FLAG17f286c72 [2020-11-28 04:32:53,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/data/39ab9a5dc/2b43de0592f94e9396341703c367f257 [2020-11-28 04:32:53,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:53,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:53,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:53,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:53,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:53,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:53" (1/1) ... [2020-11-28 04:32:53,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d0fbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:53, skipping insertion in model container [2020-11-28 04:32:53,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:53" (1/1) ... [2020-11-28 04:32:53,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:53,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:54,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:54,510 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:54,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:54,687 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:54,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54 WrapperNode [2020-11-28 04:32:54,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:54,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:54,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:54,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:54,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:54,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:54,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:54,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:54,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... [2020-11-28 04:32:54,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:54,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:54,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:54,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:54,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:54,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:32:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:32:54,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:32:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 04:32:54,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:54,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:55,340 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:55,340 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 04:32:55,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55 BoogieIcfgContainer [2020-11-28 04:32:55,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:55,343 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:55,343 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:55,355 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:55,356 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 04:32:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 04:32:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:55,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:55,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:55,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-28 04:32:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-28 04:32:55,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:55,792 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:56,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-11-28 04:32:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-11-28 04:32:56,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:32:56,089 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:56,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-28 04:32:56,738 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-28 04:32:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:56,739 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:57,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-28 04:32:57,889 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-28 04:32:57,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:57,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-28 04:32:59,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-28 04:32:59,383 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:32:59,383 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-11-28 04:32:59,389 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:32:59,463 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:32:59,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:59 ImpRootNode [2020-11-28 04:32:59,466 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:59,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:59,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:59,467 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:59,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55" (3/4) ... [2020-11-28 04:32:59,469 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:32:59,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:32:59,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:32:59,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:32:59,519 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf9bab7f-d540-47a2-9fb8-bfc03f499e32/bin/ukojak/witness.graphml [2020-11-28 04:32:59,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:59,522 INFO L168 Benchmark]: Toolchain (without parser) took 5661.92 ms. Allocated memory was 92.3 MB in the beginning and 140.5 MB in the end (delta: 48.2 MB). Free memory was 53.8 MB in the beginning and 86.6 MB in the end (delta: -32.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:59,522 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 71.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:59,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.10 ms. Allocated memory is still 92.3 MB. Free memory was 53.6 MB in the beginning and 44.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:59,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.02 ms. Allocated memory is still 92.3 MB. Free memory was 44.6 MB in the beginning and 42.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:59,524 INFO L168 Benchmark]: Boogie Preprocessor took 23.79 ms. Allocated memory is still 92.3 MB. Free memory was 42.5 MB in the beginning and 41.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:59,525 INFO L168 Benchmark]: RCFGBuilder took 575.24 ms. Allocated memory is still 92.3 MB. Free memory was 41.4 MB in the beginning and 55.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:59,526 INFO L168 Benchmark]: CodeCheck took 4123.17 ms. Allocated memory was 92.3 MB in the beginning and 140.5 MB in the end (delta: 48.2 MB). Free memory was 55.2 MB in the beginning and 88.7 MB in the end (delta: -33.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:59,526 INFO L168 Benchmark]: Witness Printer took 52.93 ms. Allocated memory is still 140.5 MB. Free memory was 88.7 MB in the beginning and 86.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:59,530 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, 11 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 484 SolverSat, 264 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1412 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - PositiveResult [Line: 779]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 772]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 772]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 772]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 71.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 826.10 ms. Allocated memory is still 92.3 MB. Free memory was 53.6 MB in the beginning and 44.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.02 ms. Allocated memory is still 92.3 MB. Free memory was 44.6 MB in the beginning and 42.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.79 ms. Allocated memory is still 92.3 MB. Free memory was 42.5 MB in the beginning and 41.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 575.24 ms. Allocated memory is still 92.3 MB. Free memory was 41.4 MB in the beginning and 55.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * CodeCheck took 4123.17 ms. Allocated memory was 92.3 MB in the beginning and 140.5 MB in the end (delta: 48.2 MB). Free memory was 55.2 MB in the beginning and 88.7 MB in the end (delta: -33.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Witness Printer took 52.93 ms. Allocated memory is still 140.5 MB. Free memory was 88.7 MB in the beginning and 86.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...