./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero2_-write.c --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_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memsetNonZero2_-write.c -s /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/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 7785be5078a920429dc2d1af3a353f3d5cac6d6f ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:43:18,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:18,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:18,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:18,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:18,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:18,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:18,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:18,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:18,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:18,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:18,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:18,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:18,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:18,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:18,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:18,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:18,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:18,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:18,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:18,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:18,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:18,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:18,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:18,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:18,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:18,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:18,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:18,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:18,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:18,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:18,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:18,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:18,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:18,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:18,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:18,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:18,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:18,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:18,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:18,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:18,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:43:18,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:18,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:18,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:18,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:18,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:18,811 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:18,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:43:18,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:18,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:18,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:18,812 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:43:18,812 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:43:18,812 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:43:18,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:18,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:18,813 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:18,813 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:18,813 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:18,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:18,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:18,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:18,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:18,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:18,815 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:18,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:18,815 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_deb6f2fb-0154-4297-823a-cb88730ab0e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7785be5078a920429dc2d1af3a353f3d5cac6d6f [2020-11-28 04:43:19,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:19,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:19,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:19,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:19,135 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:19,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memsetNonZero2_-write.c [2020-11-28 04:43:19,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/data/da36330c1/bd8b937cac97403199c578e79f489221/FLAG483714cce [2020-11-28 04:43:19,728 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:19,729 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/sv-benchmarks/c/ldv-memsafety/memsetNonZero2_-write.c [2020-11-28 04:43:19,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/data/da36330c1/bd8b937cac97403199c578e79f489221/FLAG483714cce [2020-11-28 04:43:20,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/data/da36330c1/bd8b937cac97403199c578e79f489221 [2020-11-28 04:43:20,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:20,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:20,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:20,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:20,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:20,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f2e9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20, skipping insertion in model container [2020-11-28 04:43:20,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:20,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:20,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:20,321 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:20,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:20,370 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:20,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20 WrapperNode [2020-11-28 04:43:20,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:20,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:20,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:20,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:20,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:20,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:20,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:20,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:20,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:20,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:20,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:20,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:20,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/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 04:43:20,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:20,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:43:20,803 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:20,803 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:43:20,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:20 BoogieIcfgContainer [2020-11-28 04:43:20,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:20,806 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:20,806 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:20,839 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:20,839 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:20,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-28 04:43:20,903 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-28 04:43:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-28 04:43:20,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:21,043 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 04:43:21,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:21,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-28 04:43:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-28 04:43:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:43:21,111 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:21,129 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:21,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:21,177 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:43:21,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:43:21,196 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-28 04:43:21,208 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,209 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,210 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,210 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,211 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,211 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:21 ImpRootNode [2020-11-28 04:43:21,217 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:21,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:21,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:21,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:21,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:20" (3/4) ... [2020-11-28 04:43:21,221 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:43:21,222 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,222 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,223 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,223 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,223 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,224 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-28 04:43:21,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_deb6f2fb-0154-4297-823a-cb88730ab0e7/bin/ukojak/witness.graphml [2020-11-28 04:43:21,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:21,259 INFO L168 Benchmark]: Toolchain (without parser) took 1134.57 ms. Allocated memory is still 113.2 MB. Free memory was 78.4 MB in the beginning and 58.6 MB in the end (delta: 19.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,260 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 85.9 MB in the beginning and 85.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:21,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.28 ms. Allocated memory is still 113.2 MB. Free memory was 78.2 MB in the beginning and 90.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.66 ms. Allocated memory is still 113.2 MB. Free memory was 90.8 MB in the beginning and 89.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:21,266 INFO L168 Benchmark]: Boogie Preprocessor took 21.54 ms. Allocated memory is still 113.2 MB. Free memory was 89.4 MB in the beginning and 88.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,268 INFO L168 Benchmark]: RCFGBuilder took 376.09 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 76.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,270 INFO L168 Benchmark]: CodeCheck took 410.87 ms. Allocated memory is still 113.2 MB. Free memory was 76.0 MB in the beginning and 60.1 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,273 INFO L168 Benchmark]: Witness Printer took 39.32 ms. Allocated memory is still 113.2 MB. Free memory was 60.1 MB in the beginning and 58.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:21,278 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, 9 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L21] struct compstat cstats ; * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 113.2 MB. Free memory was 85.9 MB in the beginning and 85.9 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.28 ms. Allocated memory is still 113.2 MB. Free memory was 78.2 MB in the beginning and 90.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.66 ms. Allocated memory is still 113.2 MB. Free memory was 90.8 MB in the beginning and 89.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.54 ms. Allocated memory is still 113.2 MB. Free memory was 89.4 MB in the beginning and 88.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 376.09 ms. Allocated memory is still 113.2 MB. Free memory was 88.0 MB in the beginning and 76.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 410.87 ms. Allocated memory is still 113.2 MB. Free memory was 76.0 MB in the beginning and 60.1 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 39.32 ms. Allocated memory is still 113.2 MB. Free memory was 60.1 MB in the beginning and 58.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled RESULT: Ultimate proved your program to be incorrect! Received shutdown request...