./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-1.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_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/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 8faa7ab505618d5a6c508309045d02d3235f2a80 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:43:35,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:43:35,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:43:35,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:43:35,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:43:35,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:43:35,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:43:35,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:43:35,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:43:35,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:43:35,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:43:35,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:43:35,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:43:35,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:43:35,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:43:35,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:43:35,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:43:35,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:43:35,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:43:35,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:43:35,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:43:35,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:43:35,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:43:35,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:43:35,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:43:35,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:43:35,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:43:35,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:43:35,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:43:35,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:43:35,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:43:35,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:43:35,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:43:35,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:43:35,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:43:35,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:43:35,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:43:35,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:43:35,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:43:35,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:43:35,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:43:35,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:43:35,439 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:43:35,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:43:35,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:43:35,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:43:35,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:43:35,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:43:35,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:43:35,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:43:35,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:43:35,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:43:35,445 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:43:35,445 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:43:35,445 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:43:35,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:43:35,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:43:35,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:43:35,446 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:43:35,447 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:43:35,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:43:35,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:43:35,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:43:35,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:43:35,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:43:35,448 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:43:35,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:43:35,449 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_f32ae5e6-3342-44f5-bf16-63fddb784690/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8faa7ab505618d5a6c508309045d02d3235f2a80 [2020-12-01 16:43:35,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:43:35,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:43:35,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:43:35,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:43:35,804 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:43:35,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/../../sv-benchmarks/c/memsafety/test-0158-1.i [2020-12-01 16:43:35,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/data/f850c041e/3c973378e5984b60a3d3efdd3cbf4864/FLAG637c60987 [2020-12-01 16:43:36,662 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:43:36,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/sv-benchmarks/c/memsafety/test-0158-1.i [2020-12-01 16:43:36,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/data/f850c041e/3c973378e5984b60a3d3efdd3cbf4864/FLAG637c60987 [2020-12-01 16:43:36,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/data/f850c041e/3c973378e5984b60a3d3efdd3cbf4864 [2020-12-01 16:43:36,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:43:36,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:43:36,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:43:36,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:43:36,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:43:36,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:43:36" (1/1) ... [2020-12-01 16:43:36,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f416e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:36, skipping insertion in model container [2020-12-01 16:43:36,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:43:36" (1/1) ... [2020-12-01 16:43:36,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:43:36,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:43:37,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:43:37,393 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:43:37,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:43:37,550 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:43:37,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37 WrapperNode [2020-12-01 16:43:37,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:43:37,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:43:37,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:43:37,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:43:37,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:43:37,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:43:37,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:43:37,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:43:37,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... [2020-12-01 16:43:37,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:43:37,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:43:37,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:43:37,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:43:37,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:43:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/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 16:43:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:43:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 16:43:37,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:43:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 16:43:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:43:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:43:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:43:37,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:43:38,286 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:43:38,287 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-01 16:43:38,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:43:38 BoogieIcfgContainer [2020-12-01 16:43:38,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:43:38,291 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:43:38,291 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:43:38,334 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:43:38,338 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:43:38" (1/1) ... [2020-12-01 16:43:38,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:43:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:38,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 19 states and 18 transitions. [2020-12-01 16:43:38,438 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-12-01 16:43:38,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 16:43:38,441 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:38,642 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 16:43:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 18 states and 17 transitions. [2020-12-01 16:43:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-12-01 16:43:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 16:43:38,689 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:38,761 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 16:43:38,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 17 states and 16 transitions. [2020-12-01 16:43:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-12-01 16:43:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:43:38,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:39,002 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 16:43:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2020-12-01 16:43:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-01 16:43:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:43:39,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:39,134 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 16:43:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:39,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 15 states and 14 transitions. [2020-12-01 16:43:39,386 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-12-01 16:43:39,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:43:39,386 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:39,426 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 16:43:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 14 states and 13 transitions. [2020-12-01 16:43:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-12-01 16:43:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:43:39,446 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:39,561 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 16:43:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:39,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2020-12-01 16:43:39,765 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-12-01 16:43:39,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:43:39,765 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:39,939 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 16:43:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2020-12-01 16:43:40,602 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-01 16:43:40,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:43:40,604 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:40,890 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 16:43:42,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:42,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2020-12-01 16:43:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-12-01 16:43:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:43:42,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:42,612 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 16:43:44,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2020-12-01 16:43:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-12-01 16:43:44,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:43:44,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:43:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:43:44,948 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 16:43:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:43:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2020-12-01 16:43:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-12-01 16:43:48,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:43:48,233 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2020-12-01 16:43:48,242 INFO L765 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2020-12-01 16:43:48,360 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 16:43:48,366 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:43:48,373 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:43:48,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:43:48 ImpRootNode [2020-12-01 16:43:48,375 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:43:48,376 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:43:48,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:43:48,377 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:43:48,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:43:38" (3/4) ... [2020-12-01 16:43:48,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:43:48,406 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 16:43:48,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:43:48,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:43:48,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:43:48,453 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 16:43:48,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f32ae5e6-3342-44f5-bf16-63fddb784690/bin/ukojak/witness.graphml [2020-12-01 16:43:48,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:43:48,475 INFO L168 Benchmark]: Toolchain (without parser) took 11596.60 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 60.8 MB in the beginning and 100.4 MB in the end (delta: -39.6 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:43:48,476 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 71.3 MB. Free memory was 38.7 MB in the beginning and 38.7 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:43:48,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.93 ms. Allocated memory is still 86.0 MB. Free memory was 60.6 MB in the beginning and 39.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:43:48,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.34 ms. Allocated memory is still 86.0 MB. Free memory was 39.5 MB in the beginning and 65.4 MB in the end (delta: -25.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:43:48,480 INFO L168 Benchmark]: Boogie Preprocessor took 32.03 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 64.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:43:48,481 INFO L168 Benchmark]: RCFGBuilder took 635.00 ms. Allocated memory is still 86.0 MB. Free memory was 64.0 MB in the beginning and 47.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:43:48,482 INFO L168 Benchmark]: CodeCheck took 10084.67 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 47.4 MB in the beginning and 102.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:43:48,488 INFO L168 Benchmark]: Witness Printer took 96.57 ms. Allocated memory is still 172.0 MB. Free memory was 102.5 MB in the beginning and 100.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:43:48,493 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, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 1096 SDslu, 0 SDs, 0 SdLazy, 8594 SolverSat, 3762 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 346 GetRequests, 221 SyntacticMatches, 5 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5587 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 523]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 535]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 534]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 523]: Loop Invariant [2020-12-01 16:43:48,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 16:43:48,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 71.3 MB. Free memory was 38.7 MB in the beginning and 38.7 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 672.93 ms. Allocated memory is still 86.0 MB. Free memory was 60.6 MB in the beginning and 39.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.34 ms. Allocated memory is still 86.0 MB. Free memory was 39.5 MB in the beginning and 65.4 MB in the end (delta: -25.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.03 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 64.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 635.00 ms. Allocated memory is still 86.0 MB. Free memory was 64.0 MB in the beginning and 47.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 10084.67 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 47.4 MB in the beginning and 102.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. * Witness Printer took 96.57 ms. Allocated memory is still 172.0 MB. Free memory was 102.5 MB in the beginning and 100.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...