./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/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 79a252c986c7b06f14f3ee394685573049ad76fb ........................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:21:39,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:21:39,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:21:39,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:21:39,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:21:39,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:21:39,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:21:39,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:21:39,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:21:39,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:21:39,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:21:39,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:21:39,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:21:39,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:21:39,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:21:39,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:21:39,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:21:39,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:21:39,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:21:39,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:21:39,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:21:39,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:21:39,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:21:39,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:21:39,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:21:39,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:21:39,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:21:39,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:21:39,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:21:39,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:21:39,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:21:39,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:21:39,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:21:39,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:21:39,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:21:39,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:21:39,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:21:39,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:21:39,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:21:39,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:21:39,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:21:39,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:21:39,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:21:39,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:21:39,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:21:39,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:21:39,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:21:39,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:21:39,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:21:39,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:21:39,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:21:39,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:21:39,631 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:21:39,631 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:21:39,631 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:21:39,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:21:39,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:21:39,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:21:39,632 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:21:39,632 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:21:39,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:21:39,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:21:39,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:21:39,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:21:39,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:21:39,634 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:21:39,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:21:39,634 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_8772ebff-b03b-4742-8f73-18be1a0b1de1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79a252c986c7b06f14f3ee394685573049ad76fb [2020-12-01 16:21:39,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:21:39,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:21:39,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:21:39,904 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:21:39,905 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:21:39,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2020-12-01 16:21:39,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/data/4c26003c2/187605f8c0f54a6c9d407c3d279039e5/FLAG84d289ab8 [2020-12-01 16:21:40,543 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:21:40,550 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2020-12-01 16:21:40,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/data/4c26003c2/187605f8c0f54a6c9d407c3d279039e5/FLAG84d289ab8 [2020-12-01 16:21:40,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/data/4c26003c2/187605f8c0f54a6c9d407c3d279039e5 [2020-12-01 16:21:40,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:21:40,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:21:40,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:21:40,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:21:40,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:21:40,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:21:40" (1/1) ... [2020-12-01 16:21:40,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3a8218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:40, skipping insertion in model container [2020-12-01 16:21:40,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:21:40" (1/1) ... [2020-12-01 16:21:40,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:21:40,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:21:41,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:21:41,350 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:21:41,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:21:41,531 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:21:41,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41 WrapperNode [2020-12-01 16:21:41,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:21:41,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:21:41,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:21:41,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:21:41,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:21:41,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:21:41,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:21:41,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:21:41,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... [2020-12-01 16:21:41,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:21:41,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:21:41,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:21:41,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:21:41,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:21:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/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 [2020-12-01 16:21:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:21:41,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:21:41,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:21:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-01 16:21:41,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:21:41,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:21:42,093 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:21:42,094 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 16:21:42,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:21:42 BoogieIcfgContainer [2020-12-01 16:21:42,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:21:42,097 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:21:42,097 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:21:42,112 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:21:42,112 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:21:42" (1/1) ... [2020-12-01 16:21:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:21:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:42,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2020-12-01 16:21:42,154 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-01 16:21:42,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:21:42,156 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:42,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-12-01 16:21:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-01 16:21:42,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:21:42,321 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:42,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:42,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2020-12-01 16:21:42,386 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-01 16:21:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:21:42,387 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:42,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-12-01 16:21:42,671 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-01 16:21:42,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:21:42,672 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2020-12-01 16:21:42,989 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-12-01 16:21:42,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:21:42,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2020-12-01 16:21:43,448 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-12-01 16:21:43,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:21:43,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:43,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2020-12-01 16:21:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-12-01 16:21:43,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:21:43,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:44,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-01 16:21:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-01 16:21:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:21:44,091 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:21:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:21:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:21:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-01 16:21:44,267 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-01 16:21:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:21:44,267 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:21:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:21:44,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:21:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:21:44,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:21:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:21:44,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:21:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:21:44,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:21:44,408 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2020-12-01 16:21:44,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:21:44 ImpRootNode [2020-12-01 16:21:44,448 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:21:44,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:21:44,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:21:44,449 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:21:44,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:21:42" (3/4) ... [2020-12-01 16:21:44,451 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:21:44,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8772ebff-b03b-4742-8f73-18be1a0b1de1/bin/ukojak/witness.graphml [2020-12-01 16:21:44,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:21:44,532 INFO L168 Benchmark]: Toolchain (without parser) took 3687.83 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 108.3 MB in the beginning and 82.8 MB in the end (delta: 25.5 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:21:44,534 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 83.9 MB. Free memory was 42.6 MB in the beginning and 42.5 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:21:44,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 692.37 ms. Allocated memory is still 136.3 MB. Free memory was 108.0 MB in the beginning and 89.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:21:44,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.71 ms. Allocated memory is still 136.3 MB. Free memory was 89.9 MB in the beginning and 87.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:21:44,539 INFO L168 Benchmark]: Boogie Preprocessor took 23.83 ms. Allocated memory is still 136.3 MB. Free memory was 87.9 MB in the beginning and 86.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:21:44,540 INFO L168 Benchmark]: RCFGBuilder took 476.33 ms. Allocated memory is still 136.3 MB. Free memory was 86.8 MB in the beginning and 108.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:21:44,543 INFO L168 Benchmark]: CodeCheck took 2351.65 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 108.0 MB in the beginning and 83.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:21:44,544 INFO L168 Benchmark]: Witness Printer took 77.82 ms. Allocated memory is still 163.6 MB. Free memory was 83.9 MB in the beginning and 82.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:21:44,548 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, 19 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 320 SDtfs, 886 SDslu, 64 SDs, 0 SdLazy, 3446 SolverSat, 1428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 251 SyntacticMatches, 8 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1542 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 729 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 762]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L757] int *a8; [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L759] a8 = (int *)ldv_malloc(sizeof(int)) [L762] COND TRUE \read(*a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] [L762] free(a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] [L762] free(a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] [L762] free(a8) [L762] COND TRUE \read(*a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] [L762] free(a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] [L762] free(a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] [L762] free(a8) VAL [a8={-1:0}, ldv_global_msg_list={2:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 83.9 MB. Free memory was 42.6 MB in the beginning and 42.5 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 692.37 ms. Allocated memory is still 136.3 MB. Free memory was 108.0 MB in the beginning and 89.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.71 ms. Allocated memory is still 136.3 MB. Free memory was 89.9 MB in the beginning and 87.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.83 ms. Allocated memory is still 136.3 MB. Free memory was 87.9 MB in the beginning and 86.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 476.33 ms. Allocated memory is still 136.3 MB. Free memory was 86.8 MB in the beginning and 108.0 MB in the end (delta: -21.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * CodeCheck took 2351.65 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 108.0 MB in the beginning and 83.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. * Witness Printer took 77.82 ms. Allocated memory is still 163.6 MB. Free memory was 83.9 MB in the beginning and 82.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...