./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-01-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ea18b6ba0d977117db11fbdff34c486def646c3 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:09:40,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:09:40,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:09:40,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:09:40,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:09:40,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:09:40,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:09:40,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:09:40,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:09:40,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:09:40,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:09:40,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:09:40,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:09:40,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:09:40,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:09:40,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:09:40,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:09:40,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:09:40,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:09:40,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:09:40,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:09:40,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:09:40,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:09:40,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:09:40,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:09:40,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:09:40,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:09:40,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:09:40,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:09:40,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:09:40,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:09:40,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:09:40,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:09:40,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:09:40,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:09:40,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:09:40,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:09:40,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:09:40,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:09:40,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:09:40,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:09:40,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 20:09:41,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:09:41,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:09:41,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 20:09:41,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 20:09:41,037 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:09:41,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:09:41,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:09:41,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:09:41,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:09:41,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:09:41,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:09:41,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:09:41,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:09:41,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:09:41,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:09:41,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:09:41,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:09:41,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:09:41,043 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 20:09:41,043 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 20:09:41,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:09:41,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:09:41,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 20:09:41,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:09:41,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:09:41,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:09:41,046 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 20:09:41,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:09:41,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:09:41,049 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_82049aa8-5f54-4555-8c2c-7794a06d780c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ea18b6ba0d977117db11fbdff34c486def646c3 [2020-11-29 20:09:41,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:09:41,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:09:41,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:09:41,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:09:41,485 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:09:41,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-01-2.i [2020-11-29 20:09:41,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/data/793bfe7d2/a35461fc6062479296c4b6f7c2646db7/FLAG4b0dc6293 [2020-11-29 20:09:42,394 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:09:42,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/sv-benchmarks/c/forester-heap/sll-01-2.i [2020-11-29 20:09:42,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/data/793bfe7d2/a35461fc6062479296c4b6f7c2646db7/FLAG4b0dc6293 [2020-11-29 20:09:42,611 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/data/793bfe7d2/a35461fc6062479296c4b6f7c2646db7 [2020-11-29 20:09:42,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:09:42,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:09:42,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:09:42,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:09:42,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:09:42,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:09:42" (1/1) ... [2020-11-29 20:09:42,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f900bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:42, skipping insertion in model container [2020-11-29 20:09:42,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:09:42" (1/1) ... [2020-11-29 20:09:42,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:09:42,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:09:43,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:09:43,164 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:09:43,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:09:43,298 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:09:43,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43 WrapperNode [2020-11-29 20:09:43,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:09:43,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:09:43,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:09:43,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:09:43,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:09:43,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:09:43,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:09:43,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:09:43,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... [2020-11-29 20:09:43,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:09:43,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:09:43,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:09:43,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:09:43,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:09:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/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 20:09:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 20:09:43,532 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 20:09:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 20:09:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 20:09:43,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:09:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 20:09:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:09:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:09:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:09:43,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:09:44,700 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:09:44,700 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-11-29 20:09:44,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:44 BoogieIcfgContainer [2020-11-29 20:09:44,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:09:44,704 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 20:09:44,704 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 20:09:44,718 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 20:09:44,718 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:44" (1/1) ... [2020-11-29 20:09:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:09:44,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 79 states and 136 transitions. [2020-11-29 20:09:44,782 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 136 transitions. [2020-11-29 20:09:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:09:44,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:44,986 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 20:09:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 63 states and 103 transitions. [2020-11-29 20:09:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 103 transitions. [2020-11-29 20:09:45,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 20:09:45,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:45,187 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 20:09:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 62 states and 99 transitions. [2020-11-29 20:09:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 99 transitions. [2020-11-29 20:09:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 20:09:45,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:45,315 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 20:09:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 61 states and 93 transitions. [2020-11-29 20:09:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 93 transitions. [2020-11-29 20:09:45,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:09:45,349 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:45,428 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 20:09:45,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:45,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 65 states and 97 transitions. [2020-11-29 20:09:45,605 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 97 transitions. [2020-11-29 20:09:45,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 20:09:45,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:45,687 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 20:09:45,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:45,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 64 states and 93 transitions. [2020-11-29 20:09:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2020-11-29 20:09:45,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 20:09:45,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:45,815 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 20:09:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 66 states and 95 transitions. [2020-11-29 20:09:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-11-29 20:09:45,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 20:09:45,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:45,967 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 20:09:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 65 states and 91 transitions. [2020-11-29 20:09:46,013 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-11-29 20:09:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 20:09:46,015 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:46,073 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 20:09:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 67 states and 92 transitions. [2020-11-29 20:09:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2020-11-29 20:09:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 20:09:46,100 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:46,211 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 20:09:46,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:46,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 66 states and 89 transitions. [2020-11-29 20:09:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 89 transitions. [2020-11-29 20:09:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 20:09:46,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:46,937 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 20:09:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:49,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 77 states and 105 transitions. [2020-11-29 20:09:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 105 transitions. [2020-11-29 20:09:49,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:09:49,091 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:49,241 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 20:09:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 76 states and 103 transitions. [2020-11-29 20:09:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 103 transitions. [2020-11-29 20:09:49,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:09:49,329 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:49,984 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 20:09:50,984 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35 [2020-11-29 20:09:53,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 90 states and 123 transitions. [2020-11-29 20:09:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 123 transitions. [2020-11-29 20:09:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 20:09:53,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:54,017 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 20:09:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 84 states and 114 transitions. [2020-11-29 20:09:54,626 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2020-11-29 20:09:54,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 20:09:54,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:09:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:09:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 95 states and 133 transitions. [2020-11-29 20:09:58,938 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 133 transitions. [2020-11-29 20:09:58,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:09:58,939 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:09:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:09:59,663 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 20:09:59,910 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-11-29 20:10:00,302 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-11-29 20:10:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:10:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 103 states and 145 transitions. [2020-11-29 20:10:03,400 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 145 transitions. [2020-11-29 20:10:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 20:10:03,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:10:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:03,600 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 20:10:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:10:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 114 states and 162 transitions. [2020-11-29 20:10:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2020-11-29 20:10:06,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 20:10:06,653 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:10:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:10:07,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:10:07,542 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-11-29 20:10:08,068 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2020-11-29 20:10:13,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 20:10:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 124 states and 184 transitions. [2020-11-29 20:10:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 184 transitions. [2020-11-29 20:10:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 20:10:13,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 20:10:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:13,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:13,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:13,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:10:13,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:10:13,896 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2020-11-29 20:10:13,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 08:10:13 ImpRootNode [2020-11-29 20:10:13,950 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 20:10:13,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:10:13,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:10:13,951 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:10:13,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:09:44" (3/4) ... [2020-11-29 20:10:13,954 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:10:14,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_82049aa8-5f54-4555-8c2c-7794a06d780c/bin/ukojak/witness.graphml [2020-11-29 20:10:14,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:10:14,041 INFO L168 Benchmark]: Toolchain (without parser) took 31424.62 ms. Allocated memory was 94.4 MB in the beginning and 285.2 MB in the end (delta: 190.8 MB). Free memory was 65.6 MB in the beginning and 222.8 MB in the end (delta: -157.2 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,042 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 94.4 MB. Free memory was 54.0 MB in the beginning and 53.9 MB in the end (delta: 48.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:10:14,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.80 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 58.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.74 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 56.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,045 INFO L168 Benchmark]: Boogie Preprocessor took 55.24 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 53.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,047 INFO L168 Benchmark]: RCFGBuilder took 1270.31 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 80.3 MB in the end (delta: -26.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,048 INFO L168 Benchmark]: CodeCheck took 29245.84 ms. Allocated memory was 113.2 MB in the beginning and 285.2 MB in the end (delta: 172.0 MB). Free memory was 80.3 MB in the beginning and 225.9 MB in the end (delta: -145.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,049 INFO L168 Benchmark]: Witness Printer took 89.04 ms. Allocated memory is still 285.2 MB. Free memory was 225.9 MB in the beginning and 222.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:10:14,055 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 2 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.1s, OverallIterations: 18, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1756432 SDtfs, 315418 SDslu, 199104 SDs, 0 SdLazy, 1145526 SolverSat, 507528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2993 GetRequests, 2767 SyntacticMatches, 8 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16257 ImplicationChecksByTransitivity, 25.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 381 NumberOfCodeBlocks, 381 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 332 ConstructedInterpolants, 0 QuantifiedInterpolants, 64876 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 5/10 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: 992]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); [L1003] list->next = ((void*)0) [L1004] COND FALSE !(!(list != ((void*)0))) [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1004] list->inner = malloc(sizeof(SLL)) [L1004] EXPR list->inner [L1004] list->inner->next = ((void*)0) [L1004] EXPR list->inner [L1004] list->inner->inner = ((void*)0) [L1004] EXPR list->inner [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list [L1023] COND FALSE !(!(((void*)0) != end)) [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; [L1028] EXPR end->inner [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner [L1031] COND TRUE len == 0 [L1032] len = 1 [L1035] COND FALSE !(!(((void*)0) != inner)) [L1036] EXPR inner->inner [L1036] COND FALSE !(!(((void*)0) == inner->inner)) [L1037] EXPR inner->next [L1037] COND FALSE !(!(((void*)0) == inner->next)) [L1038] EXPR inner->inner [L1038] inner = inner->inner [L1039] COND TRUE len == 1 [L1040] EXPR inner->inner [L1040] inner = inner->inner [L1029] COND TRUE ((void*)0) != inner [L1031] COND FALSE !(len == 0) [L1034] len = 2 [L1035] COND FALSE !(!(((void*)0) != inner)) [L1036] EXPR inner->inner [L1036] COND TRUE !(((void*)0) == inner->inner) [L1036] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "sll-01-2.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 94.4 MB. Free memory was 54.0 MB in the beginning and 53.9 MB in the end (delta: 48.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 676.80 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 58.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.74 ms. Allocated memory is still 94.4 MB. Free memory was 58.4 MB in the beginning and 56.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.24 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 53.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1270.31 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.9 MB in the beginning and 80.3 MB in the end (delta: -26.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * CodeCheck took 29245.84 ms. Allocated memory was 113.2 MB in the beginning and 285.2 MB in the end (delta: 172.0 MB). Free memory was 80.3 MB in the beginning and 225.9 MB in the end (delta: -145.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * Witness Printer took 89.04 ms. Allocated memory is still 285.2 MB. Free memory was 225.9 MB in the beginning and 222.8 MB in the end (delta: 3.1 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...