./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset2_-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_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset2_-write.c -s /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/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 504b8754db5656e557502f2f9e958956c9b0cd94 ....................................................................................................................................................................................................................................................... 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 [2020-11-29 20:36:10,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:36:10,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:36:10,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:36:10,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:36:10,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:36:10,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:36:10,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:36:10,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:36:10,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:36:10,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:36:10,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:36:10,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:36:10,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:36:10,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:36:10,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:36:10,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:36:10,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:36:10,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:36:10,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:36:10,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:36:10,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:36:10,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:36:10,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:36:10,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:36:10,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:36:10,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:36:10,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:36:10,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:36:10,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:36:10,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:36:10,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:36:10,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:36:10,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:36:10,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:36:10,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:36:10,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:36:10,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:36:10,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:36:10,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:36:10,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:36:10,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 20:36:10,231 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:36:10,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:36:10,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:36:10,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:36:10,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:36:10,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:36:10,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:36:10,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:36:10,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:36:10,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:36:10,243 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:36:10,244 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:36:10,244 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:36:10,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:36:10,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:36:10,245 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:36:10,245 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:36:10,245 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:36:10,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:36:10,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:36:10,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:36:10,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:36:10,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:36:10,247 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:36:10,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:36:10,247 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_177654e0-74f0-4ce6-b5eb-374591ee42ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504b8754db5656e557502f2f9e958956c9b0cd94 [2020-11-29 20:36:10,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:36:10,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:36:10,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:36:10,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:36:10,551 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:36:10,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memset2_-write.c [2020-11-29 20:36:10,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/data/d9630c954/c147c536bc9f4d649dc87f2dc2dd0ed0/FLAG1f9daa150 [2020-11-29 20:36:11,107 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:36:11,110 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/sv-benchmarks/c/ldv-memsafety/memset2_-write.c [2020-11-29 20:36:11,116 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/data/d9630c954/c147c536bc9f4d649dc87f2dc2dd0ed0/FLAG1f9daa150 [2020-11-29 20:36:11,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/data/d9630c954/c147c536bc9f4d649dc87f2dc2dd0ed0 [2020-11-29 20:36:11,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:36:11,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:36:11,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:36:11,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:36:11,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:36:11,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2260a5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11, skipping insertion in model container [2020-11-29 20:36:11,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:36:11,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:36:11,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:36:11,642 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:36:11,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:36:11,672 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:36:11,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11 WrapperNode [2020-11-29 20:36:11,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:36:11,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:36:11,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:36:11,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:36:11,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:36:11,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:36:11,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:36:11,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:36:11,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... [2020-11-29 20:36:11,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:36:11,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:36:11,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:36:11,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:36:11,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:36:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/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 [2020-11-29 20:36:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:36:11,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:36:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:36:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:36:12,172 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:36:12,173 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 20:36:12,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:36:12 BoogieIcfgContainer [2020-11-29 20:36:12,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:36:12,176 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:36:12,176 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:36:12,187 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:36:12,195 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:36:12" (1/1) ... [2020-11-29 20:36:12,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:36:12,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:36:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-29 20:36:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-29 20:36:12,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-29 20:36:12,251 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:36:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:36:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:36:12,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:36:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-11-29 20:36:12,484 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-11-29 20:36:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 20:36:12,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:36:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:36:12,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:36:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:36:12,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:36:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:36:12,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:36:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:36:12,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:36:12,615 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2020-11-29 20:36:12,629 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,630 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,631 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,631 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,631 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,632 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:36:12 ImpRootNode [2020-11-29 20:36:12,638 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:36:12,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:36:12,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:36:12,640 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:36:12,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:36:12" (3/4) ... [2020-11-29 20:36:12,643 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:36:12,643 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,644 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,644 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,644 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,645 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,645 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2020-11-29 20:36:12,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_177654e0-74f0-4ce6-b5eb-374591ee42ad/bin/ukojak/witness.graphml [2020-11-29 20:36:12,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:36:12,704 INFO L168 Benchmark]: Toolchain (without parser) took 1226.63 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 51.0 MB in the beginning and 43.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:12,705 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 36.9 MB in the beginning and 36.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:36:12,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.02 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.8 MB in the beginning and 75.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:12,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.06 ms. Allocated memory is still 96.5 MB. Free memory was 75.5 MB in the beginning and 74.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:12,709 INFO L168 Benchmark]: Boogie Preprocessor took 20.73 ms. Allocated memory is still 96.5 MB. Free memory was 74.4 MB in the beginning and 73.4 MB in the end (delta: 958.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:36:12,711 INFO L168 Benchmark]: RCFGBuilder took 423.59 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 60.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:12,712 INFO L168 Benchmark]: CodeCheck took 462.15 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 45.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:12,717 INFO L168 Benchmark]: Witness Printer took 58.91 ms. Allocated memory is still 96.5 MB. Free memory was 45.0 MB in the beginning and 43.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:36:12,720 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 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 36.9 MB in the beginning and 36.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 199.02 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.8 MB in the beginning and 75.5 MB in the end (delta: -24.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.06 ms. Allocated memory is still 96.5 MB. Free memory was 75.5 MB in the beginning and 74.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.73 ms. Allocated memory is still 96.5 MB. Free memory was 74.4 MB in the beginning and 73.4 MB in the end (delta: 958.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 423.59 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 60.8 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 462.15 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 45.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 58.91 ms. Allocated memory is still 96.5 MB. Free memory was 45.0 MB in the beginning and 43.1 MB in the end (delta: 1.9 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...