./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i -s /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/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 f9e4b987fddd5be88447132dcb5136b5a374e8f5 .............................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 10:16:48,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:48,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:48,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:48,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:48,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:48,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:48,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:48,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:48,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:48,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:48,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:48,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:48,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:48,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:48,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:48,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:48,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:48,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:48,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:48,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:48,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:48,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:48,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:48,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:48,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:48,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:48,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:48,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:48,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:48,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:48,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:48,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:48,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:48,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:48,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:48,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:48,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:48,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:48,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:48,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:48,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-10-22 10:16:48,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:48,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:48,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:48,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:48,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:48,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:16:48,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:16:48,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:48,839 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:16:48,840 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:48,840 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:48,840 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:48,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:48,840 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:48,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:48,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:48,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:48,842 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:48,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:48,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_709b3e9c-1150-476e-8369-479313826079/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 -> f9e4b987fddd5be88447132dcb5136b5a374e8f5 [2019-10-22 10:16:48,875 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:48,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:48,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:48,891 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:48,892 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:48,892 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2019-10-22 10:16:48,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/data/0cf235be0/76633b4cfde44a3cb26956c25428f8a6/FLAGde4be0815 [2019-10-22 10:16:49,384 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:49,386 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/sv-benchmarks/c/ldv-memsafety/memleaks_test16.i [2019-10-22 10:16:49,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/data/0cf235be0/76633b4cfde44a3cb26956c25428f8a6/FLAGde4be0815 [2019-10-22 10:16:49,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/data/0cf235be0/76633b4cfde44a3cb26956c25428f8a6 [2019-10-22 10:16:49,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:49,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:49,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:49,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:49,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:49,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:49" (1/1) ... [2019-10-22 10:16:49,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b7232d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:49, skipping insertion in model container [2019-10-22 10:16:49,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:49" (1/1) ... [2019-10-22 10:16:49,702 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:49,747 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:50,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:50,201 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:50,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:50,366 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:50,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50 WrapperNode [2019-10-22 10:16:50,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:50,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:50,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:50,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:50,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:50,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:50,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:50,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:50,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:50,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:50,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:50,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:50,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/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 [2019-10-22 10:16:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 10:16:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 10:16:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 10:16:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 10:16:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:50,932 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:50,932 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 10:16:50,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:50 BoogieIcfgContainer [2019-10-22 10:16:50,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:50,934 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:50,934 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:50,945 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:50,946 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:50" (1/1) ... [2019-10-22 10:16:50,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:50,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-10-22 10:16:50,996 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-10-22 10:16:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:16:51,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:51,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-10-22 10:16:51,175 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-10-22 10:16:51,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:16:51,176 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:51,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-10-22 10:16:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-10-22 10:16:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:51,451 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:16:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:16:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:16:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:16:51,579 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2019-10-22 10:16:51,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:16:51 ImpRootNode [2019-10-22 10:16:51,603 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:16:51,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:16:51,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:16:51,603 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:16:51,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:50" (3/4) ... [2019-10-22 10:16:51,606 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:16:51,678 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_709b3e9c-1150-476e-8369-479313826079/bin/ukojak/witness.graphml [2019-10-22 10:16:51,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:16:51,692 INFO L168 Benchmark]: Toolchain (without parser) took 1995.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -93.0 MB). Peak memory consumption was 76.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:51,693 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:51,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:51,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:51,694 INFO L168 Benchmark]: Boogie Preprocessor took 28.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:51,695 INFO L168 Benchmark]: RCFGBuilder took 486.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:51,695 INFO L168 Benchmark]: CodeCheck took 669.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:51,696 INFO L168 Benchmark]: Witness Printer took 75.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:51,698 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 26 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 770]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L774] int condition = __VERIFIER_nondet_int(); [L762] COND TRUE \read(condition) [L527] COND FALSE !(__VERIFIER_nondet_int()) [L530] return 0; [L763] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L764] return p; [L775] struct A16 *p = alloc_16(condition); [L769] COND TRUE \read(condition) VAL [ldv_global_msg_list={-1:0}] [L770] free(p) VAL [ldv_global_msg_list={-1:0}] [L770] free(p) VAL [ldv_global_msg_list={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 680.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 486.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * CodeCheck took 669.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * Witness Printer took 75.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...