./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/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 134c0db99ce5251339642354d8ec6411765b7878 ....................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:27:40,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:27:40,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:27:40,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:27:40,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:27:40,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:27:40,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:27:40,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:27:40,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:27:40,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:27:40,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:27:40,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:27:40,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:27:40,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:27:40,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:27:40,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:27:40,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:27:40,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:27:40,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:27:40,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:27:40,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:27:40,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:27:40,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:27:40,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:27:40,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:27:40,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:27:40,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:27:40,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:27:40,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:27:40,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:27:40,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:27:40,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:27:40,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:27:40,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:27:40,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:27:40,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:27:40,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:27:40,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:27:40,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:27:40,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:27:40,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:27:40,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 20:27:40,273 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:27:40,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:27:40,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:27:40,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:27:40,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:27:40,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:27:40,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:27:40,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:27:40,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:27:40,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:27:40,276 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:27:40,276 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:27:40,276 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:27:40,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:27:40,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:27:40,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:27:40,277 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:27:40,277 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:27:40,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:27:40,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:27:40,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:27:40,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:27:40,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:27:40,279 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:27:40,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:27:40,279 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_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 134c0db99ce5251339642354d8ec6411765b7878 [2020-11-29 20:27:40,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:27:40,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:27:40,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:27:40,567 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:27:40,567 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:27:40,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/../../sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2020-11-29 20:27:40,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/data/b412f1bf7/6ae6e69e977046f986f45c897c61408e/FLAG7f6947e0f [2020-11-29 20:27:41,206 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:27:41,207 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/sv-benchmarks/c/array-memsafety/knapsack_alloca_unsafe.i [2020-11-29 20:27:41,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/data/b412f1bf7/6ae6e69e977046f986f45c897c61408e/FLAG7f6947e0f [2020-11-29 20:27:41,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/data/b412f1bf7/6ae6e69e977046f986f45c897c61408e [2020-11-29 20:27:41,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:27:41,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:27:41,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:27:41,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:27:41,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:27:41,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:27:41" (1/1) ... [2020-11-29 20:27:41,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740f21b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:41, skipping insertion in model container [2020-11-29 20:27:41,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:27:41" (1/1) ... [2020-11-29 20:27:41,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:27:41,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:27:41,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:27:41,967 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:27:42,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:27:42,064 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:27:42,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42 WrapperNode [2020-11-29 20:27:42,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:27:42,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:27:42,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:27:42,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:27:42,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:27:42,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:27:42,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:27:42,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:27:42,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... [2020-11-29 20:27:42,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:27:42,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:27:42,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:27:42,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:27:42,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:27:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/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 20:27:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:27:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:27:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:27:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:27:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:27:42,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:27:43,227 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:27:43,227 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 20:27:43,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:27:43 BoogieIcfgContainer [2020-11-29 20:27:43,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:27:43,230 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:27:43,230 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:27:43,245 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:27:43,245 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:27:43" (1/1) ... [2020-11-29 20:27:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:27:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:43,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2020-11-29 20:27:43,302 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-11-29 20:27:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 20:27:43,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:43,494 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 20:27:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:43,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2020-11-29 20:27:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2020-11-29 20:27:43,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 20:27:43,536 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:43,766 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 20:27:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 54 states and 64 transitions. [2020-11-29 20:27:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-11-29 20:27:44,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:27:44,118 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:44,241 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 20:27:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:44,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 56 states and 68 transitions. [2020-11-29 20:27:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 68 transitions. [2020-11-29 20:27:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:27:44,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:44,794 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 20:27:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:45,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2020-11-29 20:27:45,766 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2020-11-29 20:27:45,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 20:27:45,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:45,875 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 20:27:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 59 states and 75 transitions. [2020-11-29 20:27:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2020-11-29 20:27:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:27:46,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:46,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 59 states and 74 transitions. [2020-11-29 20:27:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2020-11-29 20:27:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:27:46,518 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:46,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 63 states and 82 transitions. [2020-11-29 20:27:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2020-11-29 20:27:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:27:47,805 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:48,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 64 states and 83 transitions. [2020-11-29 20:27:48,210 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2020-11-29 20:27:48,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:27:48,211 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:48,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 69 states and 97 transitions. [2020-11-29 20:27:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2020-11-29 20:27:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:27:49,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:27:51,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:51,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 72 states and 110 transitions. [2020-11-29 20:27:51,238 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2020-11-29 20:27:51,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:27:51,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:27:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 75 states and 121 transitions. [2020-11-29 20:27:53,353 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 121 transitions. [2020-11-29 20:27:53,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 20:27:53,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:54,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:54,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 77 states and 131 transitions. [2020-11-29 20:27:54,978 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 131 transitions. [2020-11-29 20:27:54,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:27:54,979 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 20:27:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:55,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 77 states and 130 transitions. [2020-11-29 20:27:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 130 transitions. [2020-11-29 20:27:55,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:27:55,359 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:57,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:57,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 79 states and 131 transitions. [2020-11-29 20:27:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 131 transitions. [2020-11-29 20:27:57,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:27:57,024 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:27:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:27:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 83 states and 143 transitions. [2020-11-29 20:27:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 143 transitions. [2020-11-29 20:27:58,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:27:58,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:27:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:27:58,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:28:00,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 86 states and 154 transitions. [2020-11-29 20:28:00,141 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 154 transitions. [2020-11-29 20:28:00,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:28:00,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:28:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:01,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 87 states and 154 transitions. [2020-11-29 20:28:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 154 transitions. [2020-11-29 20:28:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:28:01,343 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:28:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:03,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 65 states and 98 transitions. [2020-11-29 20:28:03,255 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2020-11-29 20:28:03,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:28:03,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 20:28:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 62 states and 88 transitions. [2020-11-29 20:28:05,636 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2020-11-29 20:28:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:28:05,637 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 20:28:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:07,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 56 states and 76 transitions. [2020-11-29 20:28:07,320 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2020-11-29 20:28:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:28:07,322 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 20:28:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 58 states and 79 transitions. [2020-11-29 20:28:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2020-11-29 20:28:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:28:10,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:28:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:11,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 57 states and 76 transitions. [2020-11-29 20:28:11,063 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 76 transitions. [2020-11-29 20:28:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:28:11,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:28:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 20:28:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:28:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 56 states and 73 transitions. [2020-11-29 20:28:11,737 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2020-11-29 20:28:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:28:11,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:28:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:11,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:11,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:11,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:28:11,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:28:11,933 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 24 iterations. [2020-11-29 20:28:11,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:28:11 ImpRootNode [2020-11-29 20:28:11,969 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:28:11,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:28:11,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:28:11,970 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:28:11,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:27:43" (3/4) ... [2020-11-29 20:28:11,973 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:28:12,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f9ee9e7c-dea3-4aeb-b83e-9d6aa60f574b/bin/ukojak/witness.graphml [2020-11-29 20:28:12,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:28:12,040 INFO L168 Benchmark]: Toolchain (without parser) took 30435.58 ms. Allocated memory was 100.7 MB in the beginning and 325.1 MB in the end (delta: 224.4 MB). Free memory was 73.5 MB in the beginning and 134.5 MB in the end (delta: -61.1 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,041 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 58.0 MB in the end (delta: 78.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:28:12,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.37 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 66.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.92 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 65.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,044 INFO L168 Benchmark]: Boogie Preprocessor took 29.73 ms. Allocated memory is still 100.7 MB. Free memory was 65.0 MB in the beginning and 63.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,045 INFO L168 Benchmark]: RCFGBuilder took 1063.02 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 63.4 MB in the beginning and 80.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,046 INFO L168 Benchmark]: CodeCheck took 28738.97 ms. Allocated memory was 127.9 MB in the beginning and 325.1 MB in the end (delta: 197.1 MB). Free memory was 80.0 MB in the beginning and 136.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 139.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,047 INFO L168 Benchmark]: Witness Printer took 67.73 ms. Allocated memory is still 325.1 MB. Free memory was 136.6 MB in the beginning and 134.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:28:12,053 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, 50 locations, 27 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.6s, OverallIterations: 24, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19407872 SDtfs, 24938958 SDslu, 8390656 SDs, 0 SdLazy, 164206974 SolverSat, 42567664 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1824 GetRequests, 1527 SyntacticMatches, 41 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27251 ImplicationChecksByTransitivity, 26.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 183 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 8885 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 35/57 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: 517]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L527] int N = __VERIFIER_nondet_int(); [L528] int M = __VERIFIER_nondet_int(); [L529] COND TRUE N < 1 [L530] N = 1 [L532] COND FALSE !(M < 1) [L535] int *size = (int*) __builtin_alloca (N * sizeof(int)); [L536] int *val = (int*) __builtin_alloca (N * sizeof(int)); [L537] int *cost = (int*) __builtin_alloca (M * sizeof(int)); [L538] int *best = (int*) __builtin_alloca (M * sizeof(int)); [L540] int i = 0; [L540] COND TRUE i < N [L542] size[i] = __VERIFIER_nondet_int() [L543] val[i] = __VERIFIER_nondet_int() [L540] i++ [L540] COND FALSE !(i < N) [L546] int i = 0; [L546] COND TRUE i < M [L548] cost[i] = __VERIFIER_nondet_int() [L546] i++ [L546] COND FALSE !(i < M) [L514] int i, j; [L515] j = 1 [L515] COND TRUE j <= N [L516] i = 1 [L516] COND TRUE i <= M [L517] size[j] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 58.0 MB in the end (delta: 78.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 448.37 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 66.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.92 ms. Allocated memory is still 100.7 MB. Free memory was 66.8 MB in the beginning and 65.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.73 ms. Allocated memory is still 100.7 MB. Free memory was 65.0 MB in the beginning and 63.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1063.02 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 63.4 MB in the beginning and 80.6 MB in the end (delta: -17.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 28738.97 ms. Allocated memory was 127.9 MB in the beginning and 325.1 MB in the end (delta: 197.1 MB). Free memory was 80.0 MB in the beginning and 136.6 MB in the end (delta: -56.6 MB). Peak memory consumption was 139.7 MB. Max. memory is 16.1 GB. * Witness Printer took 67.73 ms. Allocated memory is still 325.1 MB. Free memory was 136.6 MB in the beginning and 134.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...