./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/alternating_list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/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_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f533383f211897ea0c402e211f6c19321d99a2ee7c27b850c3f29a2cf1ec1863 --- 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 16:46:14,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:46:14,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:46:14,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:46:14,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:46:14,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:46:14,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:46:14,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:46:14,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:46:14,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:46:14,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:46:14,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:46:14,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:46:14,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:46:14,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:46:14,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:46:14,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:46:14,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:46:14,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:46:14,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:46:14,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:46:14,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:46:14,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:46:14,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:46:14,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:46:14,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:46:14,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:46:14,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:46:14,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:46:14,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:46:14,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:46:14,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:46:14,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:46:14,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:46:14,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:46:14,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:46:14,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:46:14,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:46:14,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:46:14,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:46:14,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:46:14,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2022-10-17 16:46:14,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:46:14,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:46:14,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:46:14,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:46:14,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:46:14,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:46:14,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:46:14,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:46:14,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:46:14,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:46:14,287 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:46:14,287 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:46:14,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:46:14,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:46:14,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:46:14,289 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:46:14,289 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:46:14,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:46:14,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:14,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:46:14,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:46:14,290 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:46:14,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:46:14,291 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_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f533383f211897ea0c402e211f6c19321d99a2ee7c27b850c3f29a2cf1ec1863 [2022-10-17 16:46:14,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:46:14,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:46:14,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:46:14,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:46:14,572 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:46:14,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-properties/alternating_list-2.i [2022-10-17 16:46:14,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/data/a6ee406b7/6e05347072a74ee5bd522705450df577/FLAG9d4f316e8 [2022-10-17 16:46:15,255 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:46:15,256 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/sv-benchmarks/c/list-properties/alternating_list-2.i [2022-10-17 16:46:15,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/data/a6ee406b7/6e05347072a74ee5bd522705450df577/FLAG9d4f316e8 [2022-10-17 16:46:15,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/data/a6ee406b7/6e05347072a74ee5bd522705450df577 [2022-10-17 16:46:15,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:46:15,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:46:15,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:15,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:46:15,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:46:15,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:15" (1/1) ... [2022-10-17 16:46:15,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9949ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:15, skipping insertion in model container [2022-10-17 16:46:15,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:46:15" (1/1) ... [2022-10-17 16:46:15,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:46:15,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:46:15,975 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_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/sv-benchmarks/c/list-properties/alternating_list-2.i[23574,23587] [2022-10-17 16:46:15,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:15,992 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:46:16,062 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_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/sv-benchmarks/c/list-properties/alternating_list-2.i[23574,23587] [2022-10-17 16:46:16,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:46:16,101 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:46:16,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16 WrapperNode [2022-10-17 16:46:16,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:46:16,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:16,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:46:16,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:46:16,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,177 INFO L138 Inliner]: procedures = 124, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2022-10-17 16:46:16,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:46:16,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:46:16,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:46:16,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:46:16,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:46:16,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:46:16,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:46:16,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:46:16,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:46:16,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:46:16,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:46:16,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:46:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:46:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:46:16,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:46:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:46:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:46:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:46:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:46:16,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:46:16,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:46:16,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:46:16,397 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:46:16,399 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:46:16,785 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:46:16,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:46:16,844 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-17 16:46:16,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:16 BoogieIcfgContainer [2022-10-17 16:46:16,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:46:16,855 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:46:16,855 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:46:16,869 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:46:16,869 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:16" (1/1) ... [2022-10-17 16:46:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:46:16,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 65 states and 76 transitions. [2022-10-17 16:46:16,995 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2022-10-17 16:46:16,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:46:16,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:16,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:17,189 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 16:46:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:17,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 65 states and 75 transitions. [2022-10-17 16:46:17,221 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2022-10-17 16:46:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:46:17,221 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:17,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:17,347 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 16:46:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 68 states and 80 transitions. [2022-10-17 16:46:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-10-17 16:46:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:46:17,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:17,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:17,557 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 16:46:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 71 states and 85 transitions. [2022-10-17 16:46:17,791 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2022-10-17 16:46:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:17,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:17,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:17,945 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 16:46:18,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 75 states and 93 transitions. [2022-10-17 16:46:18,085 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 93 transitions. [2022-10-17 16:46:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:18,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:18,235 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 16:46:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 79 states and 102 transitions. [2022-10-17 16:46:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2022-10-17 16:46:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:18,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:18,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:18,843 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 16:46:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 81 states and 105 transitions. [2022-10-17 16:46:18,860 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 105 transitions. [2022-10-17 16:46:18,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:18,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:18,973 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 16:46:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 83 states and 108 transitions. [2022-10-17 16:46:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-10-17 16:46:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:46:18,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:19,051 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 16:46:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 86 states and 115 transitions. [2022-10-17 16:46:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 115 transitions. [2022-10-17 16:46:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:19,521 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:19,567 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 16:46:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 90 states and 122 transitions. [2022-10-17 16:46:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2022-10-17 16:46:19,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:19,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:19,839 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 16:46:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 94 states and 130 transitions. [2022-10-17 16:46:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2022-10-17 16:46:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:20,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:20,154 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 16:46:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:20,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 97 states and 138 transitions. [2022-10-17 16:46:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2022-10-17 16:46:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:20,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:20,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:20,554 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 16:46:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 99 states and 143 transitions. [2022-10-17 16:46:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 143 transitions. [2022-10-17 16:46:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:20,818 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:20,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:20,964 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 16:46:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 102 states and 151 transitions. [2022-10-17 16:46:21,595 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 151 transitions. [2022-10-17 16:46:21,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:21,596 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:21,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:21,659 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 16:46:21,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:21,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 101 states and 150 transitions. [2022-10-17 16:46:21,688 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 150 transitions. [2022-10-17 16:46:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:46:21,689 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:21,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:21,807 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 16:46:21,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:21,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 104 states and 155 transitions. [2022-10-17 16:46:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2022-10-17 16:46:21,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:21,856 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:21,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:21,916 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 16:46:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:21,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 105 states and 162 transitions. [2022-10-17 16:46:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 162 transitions. [2022-10-17 16:46:21,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:46:21,958 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:21,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:21,992 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 16:46:22,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 105 states and 161 transitions. [2022-10-17 16:46:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 161 transitions. [2022-10-17 16:46:22,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:46:22,076 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:22,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:22,130 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 16:46:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:22,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 107 states and 164 transitions. [2022-10-17 16:46:22,151 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 164 transitions. [2022-10-17 16:46:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:46:22,153 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:22,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:22,171 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 16:46:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 108 states and 166 transitions. [2022-10-17 16:46:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 166 transitions. [2022-10-17 16:46:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:46:22,320 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:22,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:22,594 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 16:46:23,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 113 states and 178 transitions. [2022-10-17 16:46:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 178 transitions. [2022-10-17 16:46:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:46:23,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:23,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:24,115 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 16:46:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:24,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 115 states and 183 transitions. [2022-10-17 16:46:24,759 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 183 transitions. [2022-10-17 16:46:24,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:46:24,759 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:24,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:24,954 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 16:46:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 125 states and 205 transitions. [2022-10-17 16:46:28,066 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 205 transitions. [2022-10-17 16:46:28,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:46:28,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:28,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:28,087 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 16:46:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:28,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 124 states and 204 transitions. [2022-10-17 16:46:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 204 transitions. [2022-10-17 16:46:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:46:28,560 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:28,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:29,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 124 states and 203 transitions. [2022-10-17 16:46:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 203 transitions. [2022-10-17 16:46:29,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:46:29,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:29,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 124 states and 202 transitions. [2022-10-17 16:46:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 202 transitions. [2022-10-17 16:46:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:46:30,899 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:30,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:31,244 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 16:46:35,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:35,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 136 states and 226 transitions. [2022-10-17 16:46:35,596 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 226 transitions. [2022-10-17 16:46:35,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:46:35,597 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:35,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:38,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:38,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 146 states and 259 transitions. [2022-10-17 16:46:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 259 transitions. [2022-10-17 16:46:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:46:38,907 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 124 states and 217 transitions. [2022-10-17 16:46:39,699 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 217 transitions. [2022-10-17 16:46:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:46:39,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:39,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 123 states and 216 transitions. [2022-10-17 16:46:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 216 transitions. [2022-10-17 16:46:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:46:39,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:39,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 126 states and 221 transitions. [2022-10-17 16:46:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 221 transitions. [2022-10-17 16:46:40,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:46:40,552 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:40,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:46:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 130 states and 237 transitions. [2022-10-17 16:46:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 237 transitions. [2022-10-17 16:46:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:46:41,542 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:41,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:46:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 132 states and 243 transitions. [2022-10-17 16:46:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 243 transitions. [2022-10-17 16:46:42,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:46:42,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:42,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:46:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:42,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 133 states and 246 transitions. [2022-10-17 16:46:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 246 transitions. [2022-10-17 16:46:42,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 16:46:42,992 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:46:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:46:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:46:43,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 133 states and 245 transitions. [2022-10-17 16:46:43,426 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 245 transitions. [2022-10-17 16:46:43,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:46:43,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:46:43,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:46:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:43,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:43,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:46:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:46:43,559 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 35 iterations. [2022-10-17 16:46:43,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:46:43 ImpRootNode [2022-10-17 16:46:43,624 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:46:43,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:46:43,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:46:43,625 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:46:43,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:46:16" (3/4) ... [2022-10-17 16:46:43,628 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:46:43,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:46:43,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:46:43,694 INFO L158 Benchmark]: Toolchain (without parser) took 28188.77ms. Allocated memory was 94.4MB in the beginning and 285.2MB in the end (delta: 190.8MB). Free memory was 68.5MB in the beginning and 118.7MB in the end (delta: -50.2MB). Peak memory consumption was 139.9MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,695 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 94.4MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:46:43,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.62ms. Allocated memory is still 94.4MB. Free memory was 68.2MB in the beginning and 60.4MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.68ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,697 INFO L158 Benchmark]: Boogie Preprocessor took 32.71ms. Allocated memory is still 94.4MB. Free memory was 58.5MB in the beginning and 56.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,697 INFO L158 Benchmark]: RCFGBuilder took 640.60ms. Allocated memory is still 94.4MB. Free memory was 56.9MB in the beginning and 38.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,698 INFO L158 Benchmark]: CodeCheck took 26769.83ms. Allocated memory was 94.4MB in the beginning and 285.2MB in the end (delta: 190.8MB). Free memory was 38.1MB in the beginning and 121.9MB in the end (delta: -83.8MB). Peak memory consumption was 110.5MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,698 INFO L158 Benchmark]: Witness Printer took 68.56ms. Allocated memory is still 285.2MB. Free memory was 121.9MB in the beginning and 118.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:46:43,701 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, 65 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 26.6s, OverallIterations: 35, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3646 SdHoareTripleChecker+Valid, 15.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2595 mSDsluCounter, 4768 SdHoareTripleChecker+Invalid, 12.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3500 mSDsCounter, 2481 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9437 IncrementalHoareTripleChecker+Invalid, 11918 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2481 mSolverCounterUnsat, 1268 mSDtfsCounter, 9437 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3492 GetRequests, 3122 SyntacticMatches, 46 SemanticMatches, 324 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48606 ImplicationChecksByTransitivity, 22.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 1524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 31 PerfectInterpolantSequences, 16/22 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: 573]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List p = a; VAL [a={-2:0}, flag=1, p={-2:0}] [L537] COND TRUE __VERIFIER_nondet_int() [L538] COND TRUE \read(flag) VAL [a={-2:0}, flag=1, p={-2:0}] [L539] p->h = 2 [L540] flag = 0 VAL [a={-2:0}, flag=0, p={-2:0}] [L545] t = (List) malloc(sizeof(struct node)) [L546] COND FALSE !(t == 0) VAL [a={-2:0}, flag=0, p={-2:0}, t={-1:0}] [L547] p->n = t VAL [a={-2:0}, flag=0, p={-2:0}, t={-1:0}] [L548] EXPR p->n [L548] p = p->n [L537] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a [L552] flag = 1 VAL [a={-2:0}, flag=1, p={-2:0}, t={-1:0}] [L553] EXPR p->h VAL [a={-2:0}, flag=1, p={-2:0}, p->h=2, t={-1:0}] [L553] COND TRUE p->h != 3 [L554] COND TRUE \read(flag) [L555] flag = 0 VAL [a={-2:0}, flag=0, p={-2:0}, t={-1:0}] [L556] EXPR p->h VAL [a={-2:0}, flag=0, p={-2:0}, p->h=2, t={-1:0}] [L556] COND TRUE p->h != 1 [L573] reach_error() VAL [a={-2:0}, flag=0, p={-2:0}, t={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 94.4MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.62ms. Allocated memory is still 94.4MB. Free memory was 68.2MB in the beginning and 60.4MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.68ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.71ms. Allocated memory is still 94.4MB. Free memory was 58.5MB in the beginning and 56.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 640.60ms. Allocated memory is still 94.4MB. Free memory was 56.9MB in the beginning and 38.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 26769.83ms. Allocated memory was 94.4MB in the beginning and 285.2MB in the end (delta: 190.8MB). Free memory was 38.1MB in the beginning and 121.9MB in the end (delta: -83.8MB). Peak memory consumption was 110.5MB. Max. memory is 16.1GB. * Witness Printer took 68.56ms. Allocated memory is still 285.2MB. Free memory was 121.9MB in the beginning and 118.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:46:43,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2cd46ee-88d1-4e03-b4af-03c7f57629ad/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(valid-memcleanup)