./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/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 e7e4a97fa815d265dd112866b503fcff377f0496 ............................................................................................................................................................................................................................................................................................................................................ 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-a4ecdab [2020-11-28 04:43:07,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:07,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:07,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:07,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:07,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:07,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:07,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:07,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:07,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:07,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:07,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:07,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:07,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:07,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:07,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:07,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:07,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:07,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:07,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:07,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:07,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:07,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:07,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:07,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:07,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:07,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:07,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:07,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:07,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:07,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:07,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:07,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:07,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:07,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:07,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:07,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:07,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:07,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:07,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:07,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:07,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:43:07,750 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:07,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:07,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:07,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:07,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:07,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:07,753 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:43:07,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:07,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:07,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:07,753 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:43:07,754 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:43:07,754 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:43:07,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:07,754 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:07,755 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:07,755 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:07,755 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:07,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:07,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:07,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:07,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:07,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:07,756 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:07,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:07,757 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_704f836a-a78b-40e1-a4a1-a4b417f4e027/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7e4a97fa815d265dd112866b503fcff377f0496 [2020-11-28 04:43:08,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:08,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:08,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:08,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:08,046 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:08,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/../../sv-benchmarks/c/memsafety/test-0158-3.i [2020-11-28 04:43:08,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/data/99fc58262/99d6470a07b14d129fb42eb125bd8d0f/FLAG2fa91e18c [2020-11-28 04:43:08,829 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:08,830 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/sv-benchmarks/c/memsafety/test-0158-3.i [2020-11-28 04:43:08,850 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/data/99fc58262/99d6470a07b14d129fb42eb125bd8d0f/FLAG2fa91e18c [2020-11-28 04:43:08,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/data/99fc58262/99d6470a07b14d129fb42eb125bd8d0f [2020-11-28 04:43:08,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:08,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:08,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:08,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:08,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:08,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:08" (1/1) ... [2020-11-28 04:43:08,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fac16d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:08, skipping insertion in model container [2020-11-28 04:43:08,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:08" (1/1) ... [2020-11-28 04:43:08,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:08,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:09,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:09,342 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:09,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:09,483 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:09,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09 WrapperNode [2020-11-28 04:43:09,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:09,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:09,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:09,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:09,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:09,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:09,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:09,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:09,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... [2020-11-28 04:43:09,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:09,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:09,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:09,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:09,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:09,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:10,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:10,112 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 04:43:10,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:10 BoogieIcfgContainer [2020-11-28 04:43:10,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:10,115 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:10,115 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:10,133 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:10,142 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:10" (1/1) ... [2020-11-28 04:43:10,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:10,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 31 states and 30 transitions. [2020-11-28 04:43:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-11-28 04:43:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-28 04:43:10,206 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:10,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 30 states and 29 transitions. [2020-11-28 04:43:10,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-11-28 04:43:10,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-28 04:43:10,411 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 29 states and 28 transitions. [2020-11-28 04:43:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2020-11-28 04:43:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:43:10,624 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 28 states and 27 transitions. [2020-11-28 04:43:10,708 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2020-11-28 04:43:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:43:10,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:10,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 27 states and 26 transitions. [2020-11-28 04:43:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-11-28 04:43:10,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:43:10,799 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:10,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 26 states and 25 transitions. [2020-11-28 04:43:10,866 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2020-11-28 04:43:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:43:10,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:10,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:11,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 25 states and 24 transitions. [2020-11-28 04:43:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2020-11-28 04:43:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:43:11,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:11,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:11,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:11,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 24 states and 23 transitions. [2020-11-28 04:43:11,180 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-11-28 04:43:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:43:11,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 23 states and 22 transitions. [2020-11-28 04:43:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2020-11-28 04:43:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:43:11,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 22 states and 21 transitions. [2020-11-28 04:43:11,281 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-11-28 04:43:11,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:43:11,282 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:11,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:11,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 21 states and 20 transitions. [2020-11-28 04:43:11,349 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-28 04:43:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:43:11,350 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 20 states and 19 transitions. [2020-11-28 04:43:12,040 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-11-28 04:43:12,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:43:12,040 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:12,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 19 states and 18 transitions. [2020-11-28 04:43:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-11-28 04:43:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:43:13,293 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:14,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 18 states and 17 transitions. [2020-11-28 04:43:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-28 04:43:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:43:14,870 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:16,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 17 states and 16 transitions. [2020-11-28 04:43:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2020-11-28 04:43:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:43:16,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2020-11-28 04:43:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-28 04:43:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:43:17,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:17,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:17,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:17,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:17,893 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:17,936 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2020-11-28 04:43:17,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:17 ImpRootNode [2020-11-28 04:43:17,960 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:17,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:17,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:17,961 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:17,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:10" (3/4) ... [2020-11-28 04:43:17,963 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:43:18,002 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_704f836a-a78b-40e1-a4a1-a4b417f4e027/bin/ukojak/witness.graphml [2020-11-28 04:43:18,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:18,004 INFO L168 Benchmark]: Toolchain (without parser) took 9137.41 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 67.4 MB in the beginning and 51.6 MB in the end (delta: 15.8 MB). Peak memory consumption was 51.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,005 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:18,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.17 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 57.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.21 ms. Allocated memory is still 100.7 MB. Free memory was 57.0 MB in the beginning and 55.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,007 INFO L168 Benchmark]: Boogie Preprocessor took 50.97 ms. Allocated memory is still 100.7 MB. Free memory was 55.1 MB in the beginning and 53.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,008 INFO L168 Benchmark]: RCFGBuilder took 504.27 ms. Allocated memory is still 100.7 MB. Free memory was 53.9 MB in the beginning and 33.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,009 INFO L168 Benchmark]: CodeCheck took 7845.87 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 33.9 MB in the beginning and 53.7 MB in the end (delta: -19.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,010 INFO L168 Benchmark]: Witness Printer took 41.41 ms. Allocated memory is still 136.3 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:18,015 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, 31 locations, 17 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.7s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 31832 SDslu, 0 SDs, 0 SdLazy, 242778 SolverSat, 109770 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 626 GetRequests, 486 SyntacticMatches, 18 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5851 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 3232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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: 655]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L642-L649] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L650] data.p0 = malloc(37U) [L651] data.str.p2 = &data [L652] EXPR data.p0 [L652] void *ptr = data.p0; [L653] data.str.c[1] = sizeof data.str.p1 [L654] EXPR data.p0 [L654] free(data.p0) [L654] free(data.p0) [L654] free(data.p0) [L655] free(ptr) [L655] free(ptr) [L655] free(ptr) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 617.17 ms. Allocated memory is still 100.7 MB. Free memory was 67.1 MB in the beginning and 57.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.21 ms. Allocated memory is still 100.7 MB. Free memory was 57.0 MB in the beginning and 55.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.97 ms. Allocated memory is still 100.7 MB. Free memory was 55.1 MB in the beginning and 53.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 504.27 ms. Allocated memory is still 100.7 MB. Free memory was 53.9 MB in the beginning and 33.9 MB in the end (delta: 20.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 7845.87 ms. Allocated memory was 100.7 MB in the beginning and 136.3 MB in the end (delta: 35.7 MB). Free memory was 33.9 MB in the beginning and 53.7 MB in the end (delta: -19.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * Witness Printer took 41.41 ms. Allocated memory is still 136.3 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...