./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI --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 428ed4ebbacd235ea719e6f888a7e28edd9cc4f57416ea2a11ce399dc2c47283 ................................................................................................................................................................................................................................................................................................ 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 0.2.1-dev-b2eff8b [2021-10-29 04:03:22,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:03:22,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:03:22,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:03:22,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:03:22,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:03:22,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:03:22,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:03:22,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:03:22,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:03:22,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:03:22,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:03:22,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:03:22,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:03:22,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:03:22,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:03:22,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:03:22,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:03:22,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:03:22,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:03:22,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:03:22,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:03:22,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:03:22,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:03:22,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:03:22,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:03:22,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:03:22,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:03:22,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:03:22,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:03:22,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:03:22,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:03:22,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:03:22,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:03:22,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:03:22,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:03:22,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:03:22,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:03:22,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:03:22,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:03:22,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:03:22,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 04:03:22,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:03:22,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:03:22,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:03:22,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:03:22,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:03:22,392 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:03:22,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:03:22,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:03:22,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:03:22,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:03:22,393 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:03:22,394 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:03:22,394 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:03:22,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:03:22,394 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:03:22,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:03:22,395 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:03:22,395 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:03:22,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:03:22,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:03:22,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:03:22,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:03:22,396 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:03:22,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:03:22,396 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_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 428ed4ebbacd235ea719e6f888a7e28edd9cc4f57416ea2a11ce399dc2c47283 [2021-10-29 04:03:22,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:03:22,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:03:22,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:03:22,724 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:03:22,725 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:03:22,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2021-10-29 04:03:22,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/data/bffdbc369/e27ef9a954e242ea8f44a88b473f5c92/FLAGed8952995 [2021-10-29 04:03:23,408 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:03:23,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2.i [2021-10-29 04:03:23,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/data/bffdbc369/e27ef9a954e242ea8f44a88b473f5c92/FLAGed8952995 [2021-10-29 04:03:23,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/data/bffdbc369/e27ef9a954e242ea8f44a88b473f5c92 [2021-10-29 04:03:23,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:03:23,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:03:23,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:03:23,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:03:23,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:03:23,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:03:23" (1/1) ... [2021-10-29 04:03:23,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efc0f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:23, skipping insertion in model container [2021-10-29 04:03:23,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:03:23" (1/1) ... [2021-10-29 04:03:23,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:03:23,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:03:24,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:03:24,202 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:03:24,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:03:24,383 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:03:24,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24 WrapperNode [2021-10-29 04:03:24,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:03:24,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:03:24,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:03:24,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:03:24,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:03:24,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:03:24,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:03:24,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:03:24,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:03:24,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:03:24,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:03:24,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:03:24,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:24,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:03:24,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:03:24,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:03:24,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:03:24,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 04:03:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:03:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:03:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-29 04:03:24,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:03:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:03:24,968 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:03:24,968 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-29 04:03:24,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:03:24 BoogieIcfgContainer [2021-10-29 04:03:24,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:03:24,976 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:03:24,977 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:03:24,992 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:03:24,992 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:03:24" (1/1) ... [2021-10-29 04:03:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:03:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-10-29 04:03:25,043 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 04:03:25,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:03:25,046 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:25,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:25,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2021-10-29 04:03:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-29 04:03:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:03:25,296 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:25,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:25,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-10-29 04:03:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 04:03:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:03:25,424 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:25,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:25,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2021-10-29 04:03:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-29 04:03:25,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:03:25,665 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:25,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2021-10-29 04:03:25,951 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-10-29 04:03:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:03:25,954 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:25,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:26,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2021-10-29 04:03:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-10-29 04:03:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:03:26,368 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:26,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:26,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:26,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2021-10-29 04:03:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-10-29 04:03:26,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:03:26,633 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:26,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:26,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-29 04:03:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-29 04:03:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:03:26,957 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:26,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:03:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:03:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:03:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-29 04:03:27,138 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-29 04:03:27,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:03:27,139 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:03:27,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:03:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:03:27,152 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:03:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:03:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:03:27,207 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:03:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:03:27,223 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2021-10-29 04:03:27,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:03:27 ImpRootNode [2021-10-29 04:03:27,247 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:03:27,248 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:03:27,248 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:03:27,248 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:03:27,249 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:03:24" (3/4) ... [2021-10-29 04:03:27,251 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:03:27,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:03:27,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:03:27,292 INFO L168 Benchmark]: Toolchain (without parser) took 3622.67 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 60.0 MB in the beginning and 51.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,292 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 94.4 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:03:27,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.11 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 86.9 MB in the end (delta: -27.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.56 ms. Allocated memory is still 115.3 MB. Free memory was 86.9 MB in the beginning and 84.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,295 INFO L168 Benchmark]: Boogie Preprocessor took 62.11 ms. Allocated memory is still 115.3 MB. Free memory was 84.8 MB in the beginning and 83.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,296 INFO L168 Benchmark]: RCFGBuilder took 474.01 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 70.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,297 INFO L168 Benchmark]: CodeCheck took 2270.78 ms. Allocated memory is still 115.3 MB. Free memory was 70.5 MB in the beginning and 53.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,298 INFO L168 Benchmark]: Witness Printer took 42.26 ms. Allocated memory is still 115.3 MB. Free memory was 53.6 MB in the beginning and 51.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:03:27,303 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. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 320 SDtfs, 886 SDslu, 64 SDs, 0 SdLazy, 3446 SolverSat, 1428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 251 SyntacticMatches, 8 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1542 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 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={29164:0}, ldv_global_msg_list={29166:0}] [L762] free(a8) VAL [a8={29164:0}, ldv_global_msg_list={29166:0}] [L762] free(a8) VAL [a8={29164:0}, ldv_global_msg_list={29166:0}] [L762] free(a8) [L762] COND TRUE \read(*a8) VAL [a8={29164:0}, ldv_global_msg_list={29166:0}] [L762] free(a8) VAL [a8={29164:0}, ldv_global_msg_list={29166:0}] [L762] free(a8) VAL [a8={29164:0}, ldv_global_msg_list={29166:0}] [L762] free(a8) VAL [a8={29164:0}, ldv_global_msg_list={29166:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 94.4 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 715.11 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 86.9 MB in the end (delta: -27.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.56 ms. Allocated memory is still 115.3 MB. Free memory was 86.9 MB in the beginning and 84.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.11 ms. Allocated memory is still 115.3 MB. Free memory was 84.8 MB in the beginning and 83.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 474.01 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 70.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2270.78 ms. Allocated memory is still 115.3 MB. Free memory was 70.5 MB in the beginning and 53.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 42.26 ms. Allocated memory is still 115.3 MB. Free memory was 53.6 MB in the beginning and 51.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:03:27,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b06b6be-da48-4305-918b-7aec2c74412f/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...