./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/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 cbc7a588e1092d0916f2339b4d4b9e0fa8415335 ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:09:41,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:09:41,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:09:41,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:09:41,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:09:41,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:09:41,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:09:41,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:09:41,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:09:41,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:09:41,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:09:41,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:09:41,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:09:41,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:09:41,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:09:41,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:09:41,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:09:41,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:09:41,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:09:41,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:09:41,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:09:41,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:09:41,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:09:41,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:09:41,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:09:41,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:09:41,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:09:41,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:09:41,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:09:41,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:09:41,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:09:41,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:09:41,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:09:41,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:09:41,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:09:41,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:09:41,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:09:41,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:09:41,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:09:41,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:09:41,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:09:41,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 18:09:42,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:09:42,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:09:42,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:09:42,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:09:42,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:09:42,006 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:09:42,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:09:42,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:09:42,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:09:42,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:09:42,009 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 18:09:42,009 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 18:09:42,009 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 18:09:42,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:09:42,010 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:09:42,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:09:42,011 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:09:42,011 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:09:42,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:09:42,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:09:42,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:09:42,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:09:42,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:09:42,013 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:09:42,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:09:42,013 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_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbc7a588e1092d0916f2339b4d4b9e0fa8415335 [2020-12-01 18:09:42,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:09:42,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:09:42,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:09:42,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:09:42,473 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:09:42,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2020-12-01 18:09:42,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/data/be376b94d/d7c18a122d1c4e0fbcf83df89dc084b4/FLAG6f92773e5 [2020-12-01 18:09:43,155 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:09:43,156 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2020-12-01 18:09:43,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/data/be376b94d/d7c18a122d1c4e0fbcf83df89dc084b4/FLAG6f92773e5 [2020-12-01 18:09:43,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/data/be376b94d/d7c18a122d1c4e0fbcf83df89dc084b4 [2020-12-01 18:09:43,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:09:43,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:09:43,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:09:43,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:09:43,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:09:43,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:09:43" (1/1) ... [2020-12-01 18:09:43,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e72d84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:43, skipping insertion in model container [2020-12-01 18:09:43,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:09:43" (1/1) ... [2020-12-01 18:09:43,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:09:43,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:09:44,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:09:44,019 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:09:44,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:09:44,167 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:09:44,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44 WrapperNode [2020-12-01 18:09:44,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:09:44,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:09:44,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:09:44,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:09:44,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:09:44,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:09:44,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:09:44,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:09:44,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... [2020-12-01 18:09:44,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:09:44,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:09:44,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:09:44,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:09:44,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:09:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/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 [2020-12-01 18:09:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:09:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:09:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:09:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:09:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:09:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:09:44,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:09:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:09:45,069 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:09:45,082 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 18:09:45,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:09:45 BoogieIcfgContainer [2020-12-01 18:09:45,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:09:45,087 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:09:45,087 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:09:45,101 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:09:45,101 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:09:45" (1/1) ... [2020-12-01 18:09:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:09:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2020-12-01 18:09:45,200 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-12-01 18:09:45,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:09:45,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:45,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 47 states and 50 transitions. [2020-12-01 18:09:45,421 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-12-01 18:09:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:09:45,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:45,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:45,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 46 states and 49 transitions. [2020-12-01 18:09:45,602 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-12-01 18:09:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:09:45,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:45,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 50 states and 56 transitions. [2020-12-01 18:09:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-12-01 18:09:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:09:45,932 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2020-12-01 18:09:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-12-01 18:09:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:09:46,353 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:47,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2020-12-01 18:09:47,320 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2020-12-01 18:09:47,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:09:47,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:47,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2020-12-01 18:09:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-12-01 18:09:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:09:47,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:48,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 52 states and 59 transitions. [2020-12-01 18:09:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2020-12-01 18:09:48,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:09:48,337 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:49,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2020-12-01 18:09:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2020-12-01 18:09:49,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:09:49,318 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:50,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 57 states and 68 transitions. [2020-12-01 18:09:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-12-01 18:09:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:09:50,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 61 states and 76 transitions. [2020-12-01 18:09:52,665 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-12-01 18:09:52,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:09:52,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:52,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:53,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2020-12-01 18:09:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2020-12-01 18:09:53,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:09:53,091 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:09:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 64 states and 83 transitions. [2020-12-01 18:09:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2020-12-01 18:09:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:09:54,631 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:54,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 69 states and 90 transitions. [2020-12-01 18:09:55,796 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2020-12-01 18:09:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:09:55,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 70 states and 90 transitions. [2020-12-01 18:09:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2020-12-01 18:09:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:09:55,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:58,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 77 states and 101 transitions. [2020-12-01 18:09:58,459 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2020-12-01 18:09:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:09:58,460 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 18:09:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:09:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 79 states and 102 transitions. [2020-12-01 18:09:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2020-12-01 18:09:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:09:58,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:09:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:09:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:10:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:01,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 88 states and 115 transitions. [2020-12-01 18:10:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2020-12-01 18:10:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:01,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:10:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 94 states and 124 transitions. [2020-12-01 18:10:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-12-01 18:10:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:02,784 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:10:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 97 states and 127 transitions. [2020-12-01 18:10:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 127 transitions. [2020-12-01 18:10:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:02,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:10:04,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:04,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 99 states and 131 transitions. [2020-12-01 18:10:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 131 transitions. [2020-12-01 18:10:04,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:04,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 18:10:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 100 states and 131 transitions. [2020-12-01 18:10:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2020-12-01 18:10:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:06,022 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:10:06,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 101 states and 133 transitions. [2020-12-01 18:10:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2020-12-01 18:10:06,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:06,497 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 18:10:08,877 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-12-01 18:10:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 106 states and 145 transitions. [2020-12-01 18:10:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2020-12-01 18:10:11,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:10:11,639 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:10:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 18:10:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:10:12,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 107 states and 145 transitions. [2020-12-01 18:10:12,220 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 145 transitions. [2020-12-01 18:10:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:10:12,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:10:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:10:12,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:10:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:10:12,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:10:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:10:12,348 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:10:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:10:12,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:10:12,902 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 25 iterations. [2020-12-01 18:10:12,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:10:12 ImpRootNode [2020-12-01 18:10:12,946 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:10:12,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:10:12,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:10:12,947 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:10:12,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:09:45" (3/4) ... [2020-12-01 18:10:12,951 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:10:13,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c3e9a3ae-d16f-494f-9b9c-6878be2a5d1f/bin/ukojak/witness.graphml [2020-12-01 18:10:13,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:10:13,055 INFO L168 Benchmark]: Toolchain (without parser) took 29614.64 ms. Allocated memory was 104.9 MB in the beginning and 383.8 MB in the end (delta: 278.9 MB). Free memory was 76.3 MB in the beginning and 278.8 MB in the end (delta: -202.5 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:10:13,056 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory was 61.3 MB in the beginning and 61.2 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:10:13,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.00 ms. Allocated memory is still 104.9 MB. Free memory was 76.3 MB in the beginning and 70.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 18:10:13,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.76 ms. Allocated memory is still 104.9 MB. Free memory was 70.4 MB in the beginning and 68.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:10:13,067 INFO L168 Benchmark]: Boogie Preprocessor took 71.22 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 67.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:10:13,068 INFO L168 Benchmark]: RCFGBuilder took 758.69 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 96.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:10:13,070 INFO L168 Benchmark]: CodeCheck took 27859.66 ms. Allocated memory was 125.8 MB in the beginning and 383.8 MB in the end (delta: 257.9 MB). Free memory was 96.9 MB in the beginning and 280.9 MB in the end (delta: -184.0 MB). Peak memory consumption was 75.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:10:13,072 INFO L168 Benchmark]: Witness Printer took 105.71 ms. Allocated memory is still 383.8 MB. Free memory was 280.9 MB in the beginning and 278.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:10:13,077 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, 47 locations, 21 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.7s, OverallIterations: 25, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 84197376 SDtfs, 28776126 SDslu, 14963584 SDs, 0 SdLazy, 179606690 SolverSat, 67223164 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2191 GetRequests, 1869 SyntacticMatches, 30 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41271 ImplicationChecksByTransitivity, 24.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 270 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 11858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 17 PerfectInterpolantSequences, 39/57 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: 547]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L523] int *a, *b; [L524] int n; [L536] n = 1 VAL [a={0:0}, b={0:0}, n=1] [L537] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L540] a = malloc(n * sizeof(*a)) [L541] b = malloc(n * sizeof(*b)) [L542] EXPR b++ VAL [a={-25570:0}, b={-25569:4}, n=1] [L542] *b++ = 0 [L528] int i; [L529] i = 0 VAL [a={-25570:0}, b={-25569:4}, n=1] [L529] COND TRUE i < n VAL [a={-25570:0}, b={-25569:4}, n=1] [L530] a[i] = -1 [L529] i++ VAL [a={-25570:0}, b={-25569:4}, n=1] [L529] COND FALSE !(i < n) [L531] i = 0 VAL [a={-25570:0}, b={-25569:4}, n=1] [L531] COND FALSE !(i < n - 1) VAL [a={-25570:0}, b={-25569:4}, n=1] [L544] b[-1] VAL [a={-25570:0}, b={-25569:4}, n=1] [L544] COND FALSE !(b[-1]) [L547] free(a) VAL [a={-25570:0}, b={-25569:4}, n=1] [L547] free(a) VAL [a={-25570:0}, b={-25569:4}, n=1] [L547] free(a) [L547] free(b) VAL [a={-25570:0}, b={-25569:4}, n=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 104.9 MB. Free memory was 61.3 MB in the beginning and 61.2 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 729.00 ms. Allocated memory is still 104.9 MB. Free memory was 76.3 MB in the beginning and 70.4 MB in the end (delta: 6.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.76 ms. Allocated memory is still 104.9 MB. Free memory was 70.4 MB in the beginning and 68.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.22 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 67.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 758.69 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 96.9 MB in the end (delta: -29.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 27859.66 ms. Allocated memory was 125.8 MB in the beginning and 383.8 MB in the end (delta: 257.9 MB). Free memory was 96.9 MB in the beginning and 280.9 MB in the end (delta: -184.0 MB). Peak memory consumption was 75.2 MB. Max. memory is 16.1 GB. * Witness Printer took 105.71 ms. Allocated memory is still 383.8 MB. Free memory was 280.9 MB in the beginning and 278.8 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...