./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-optional-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB --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 88a09c8f9046119952ab983278979c8bac528a0f4e69aababe99c00b4eccdca0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:46:09,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:09,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:09,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:09,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:09,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:09,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:09,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:09,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:09,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:09,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:09,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:09,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:09,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:09,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:09,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:09,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:09,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:09,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:09,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:09,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:09,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:09,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:09,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:09,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:09,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:09,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:09,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:09,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:09,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:09,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:09,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:09,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:09,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:09,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:09,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:09,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:09,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:09,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:09,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:09,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:09,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:46:09,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:09,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:09,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:46:09,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:46:09,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:09,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:09,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:09,388 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:46:09,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:09,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:46:09,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:09,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:46:09,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:09,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:46:09,390 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:46:09,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:46:09,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:09,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:46:09,391 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:09,391 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:09,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:09,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:09,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:09,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:09,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:46:09,392 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:09,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:09,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:46:09,400 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_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88a09c8f9046119952ab983278979c8bac528a0f4e69aababe99c00b4eccdca0 [2022-10-17 16:46:09,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:09,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:09,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:09,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:09,684 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:09,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/forester-heap/sll-optional-2.i [2022-10-17 16:46:09,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/data/fd5eea4ea/229efcf89e7545bfa6cb8ebf5248030b/FLAGac82f5d7f [2022-10-17 16:46:10,368 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:10,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/sv-benchmarks/c/forester-heap/sll-optional-2.i [2022-10-17 16:46:10,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/data/fd5eea4ea/229efcf89e7545bfa6cb8ebf5248030b/FLAGac82f5d7f [2022-10-17 16:46:10,645 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/data/fd5eea4ea/229efcf89e7545bfa6cb8ebf5248030b [2022-10-17 16:46:10,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:10,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:10,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:10,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:10,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:10,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:10" (1/1) ... [2022-10-17 16:46:10,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31fbbea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:10, skipping insertion in model container [2022-10-17 16:46:10,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:10" (1/1) ... [2022-10-17 16:46:10,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:10,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:11,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/sv-benchmarks/c/forester-heap/sll-optional-2.i[22641,22654] [2022-10-17 16:46:11,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:11,093 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:11,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/sv-benchmarks/c/forester-heap/sll-optional-2.i[22641,22654] [2022-10-17 16:46:11,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:11,172 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:11,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11 WrapperNode [2022-10-17 16:46:11,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:11,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:11,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:11,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:11,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,244 INFO L138 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 111 [2022-10-17 16:46:11,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:11,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:11,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:11,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:11,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,292 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:11,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:11,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:11,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:11,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:11" (1/1) ... [2022-10-17 16:46:11,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:11,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:11,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:11,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:46:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:46:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:11,492 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:11,494 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:11,728 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:12,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:12,058 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-17 16:46:12,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:12 BoogieIcfgContainer [2022-10-17 16:46:12,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:12,062 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:12,062 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:12,078 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:12,078 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:12" (1/1) ... [2022-10-17 16:46:12,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2022-10-17 16:46:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2022-10-17 16:46:12,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:46:12,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:12,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-10-17 16:46:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-10-17 16:46:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:46:12,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:12,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:13,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:13,129 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-10-17 16:46:13,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:13 ImpRootNode [2022-10-17 16:46:13,162 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:13,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:13,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:13,163 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:13,164 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:12" (3/4) ... [2022-10-17 16:46:13,166 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:13,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:13,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:13,212 INFO L158 Benchmark]: Toolchain (without parser) took 2562.18ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 73.6MB in the beginning and 83.9MB in the end (delta: -10.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,213 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:13,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.32ms. Allocated memory is still 96.5MB. Free memory was 73.4MB in the beginning and 62.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.59ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 60.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,214 INFO L158 Benchmark]: Boogie Preprocessor took 62.77ms. Allocated memory is still 96.5MB. Free memory was 60.7MB in the beginning and 58.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,215 INFO L158 Benchmark]: RCFGBuilder took 752.81ms. Allocated memory is still 96.5MB. Free memory was 58.7MB in the beginning and 66.8MB in the end (delta: -8.1MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,215 INFO L158 Benchmark]: CodeCheck took 1100.00ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 66.8MB in the beginning and 85.9MB in the end (delta: -19.1MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,216 INFO L158 Benchmark]: Witness Printer took 48.64ms. Allocated memory is still 123.7MB. Free memory was 85.7MB in the beginning and 83.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:13,223 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1007]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = ((void*)0) [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] COND FALSE !(__VERIFIER_nondet_int()) [L998] head->data = 0 [L998] head->opt = head [L999] SLL* x = head; VAL [head={-1:0}, head->opt={78:79}, malloc(sizeof(SLL))={80:81}, x={-1:0}] [L1001] COND FALSE !(__VERIFIER_nondet_int()) [L1004] x = head VAL [head={-1:0}, head->opt={78:79}, malloc(sizeof(SLL))={80:81}, x={-1:0}] [L1005] COND TRUE x != ((void*)0) VAL [head={-1:0}, head->opt={78:79}, malloc(sizeof(SLL))={80:81}, x={-1:0}] [L1007] EXPR x->data [L1007] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, head->opt={78:79}, malloc(sizeof(SLL))={80:81}, x={-1:0}, x->data=0, x->data == 2 && x->opt == x=0, x->opt={83:82}] [L1007] COND TRUE !(x->data == 2 && x->opt == x) [L1007] reach_error() VAL [head={-1:0}, head->opt={78:79}, malloc(sizeof(SLL))={80:81}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.32ms. Allocated memory is still 96.5MB. Free memory was 73.4MB in the beginning and 62.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.59ms. Allocated memory is still 96.5MB. Free memory was 62.6MB in the beginning and 60.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.77ms. Allocated memory is still 96.5MB. Free memory was 60.7MB in the beginning and 58.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 752.81ms. Allocated memory is still 96.5MB. Free memory was 58.7MB in the beginning and 66.8MB in the end (delta: -8.1MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * CodeCheck took 1100.00ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 66.8MB in the beginning and 85.9MB in the end (delta: -19.1MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 48.64ms. Allocated memory is still 123.7MB. Free memory was 85.7MB in the beginning and 83.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:46:13,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7fccda7-a872-40d9-8a24-d1dfe7ef961c/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE