./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple-1.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_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/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_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/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_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/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 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b --- 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 16:30:57,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:30:57,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:30:57,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:30:57,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:30:57,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:30:57,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:30:57,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:30:57,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:30:57,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:30:57,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:30:57,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:30:57,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:30:57,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:30:57,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:30:57,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:30:57,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:30:57,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:30:57,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:30:57,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:30:57,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:30:57,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:30:57,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:30:57,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:30:57,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:30:57,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:30:57,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:30:57,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:30:57,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:30:57,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:30:57,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:30:57,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:30:57,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:30:57,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:30:57,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:30:57,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:30:57,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:30:57,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:30:57,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:30:57,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:30:57,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:30:57,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2022-10-17 16:30:57,268 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:30:57,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:30:57,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:30:57,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:30:57,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:30:57,271 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:30:57,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:30:57,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:30:57,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:30:57,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:30:57,275 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:30:57,275 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:30:57,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:30:57,276 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:30:57,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:30:57,276 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:30:57,277 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:30:57,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:30:57,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:30:57,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:30:57,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:30:57,278 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:30:57,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:30:57,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b [2022-10-17 16:30:57,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:30:57,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:30:57,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:30:57,603 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:30:57,604 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:30:57,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-properties/simple-1.i [2022-10-17 16:30:57,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/data/0fa0f0b48/fe605b0fa2fe42529b0fd5ea92a915e4/FLAG182929f02 [2022-10-17 16:30:58,290 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:30:58,292 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/sv-benchmarks/c/list-properties/simple-1.i [2022-10-17 16:30:58,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/data/0fa0f0b48/fe605b0fa2fe42529b0fd5ea92a915e4/FLAG182929f02 [2022-10-17 16:30:58,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/data/0fa0f0b48/fe605b0fa2fe42529b0fd5ea92a915e4 [2022-10-17 16:30:58,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:30:58,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:30:58,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:30:58,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:30:58,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:30:58,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:30:58" (1/1) ... [2022-10-17 16:30:58,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@429ed133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:58, skipping insertion in model container [2022-10-17 16:30:58,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:30:58" (1/1) ... [2022-10-17 16:30:58,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:30:58,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:30:59,000 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_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/sv-benchmarks/c/list-properties/simple-1.i[23237,23250] [2022-10-17 16:30:59,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:30:59,015 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:30:59,058 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_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/sv-benchmarks/c/list-properties/simple-1.i[23237,23250] [2022-10-17 16:30:59,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:30:59,102 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:30:59,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59 WrapperNode [2022-10-17 16:30:59,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:30:59,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:30:59,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:30:59,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:30:59,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,188 INFO L138 Inliner]: procedures = 124, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-10-17 16:30:59,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:30:59,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:30:59,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:30:59,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:30:59,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:30:59,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:30:59,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:30:59,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:30:59,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:30:59,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:30:59,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:30:59,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:30:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:30:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:30:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:30:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:30:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:30:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:30:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:30:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:30:59,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:30:59,491 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:30:59,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:30:59,723 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:30:59,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:30:59,781 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 16:30:59,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:30:59 BoogieIcfgContainer [2022-10-17 16:30:59,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:30:59,786 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:30:59,786 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:30:59,798 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:30:59,798 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:30:59" (1/1) ... [2022-10-17 16:30:59,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:30:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:30:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 38 states and 43 transitions. [2022-10-17 16:30:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-10-17 16:30:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:30:59,872 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:30:59,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:30:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:00,192 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 16:31:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2022-10-17 16:31:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-10-17 16:31:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:31:00,315 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:00,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:00,479 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 16:31:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:00,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 36 states and 41 transitions. [2022-10-17 16:31:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-10-17 16:31:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:31:00,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:00,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:00,695 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 16:31:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2022-10-17 16:31:00,717 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-10-17 16:31:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:31:00,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:00,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:00,899 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 16:31:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 39 states and 45 transitions. [2022-10-17 16:31:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-10-17 16:31:01,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:31:01,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:01,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:01,350 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 16:31:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 42 states and 50 transitions. [2022-10-17 16:31:01,737 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-10-17 16:31:01,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:31:01,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:01,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:01,839 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 16:31:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2022-10-17 16:31:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-10-17 16:31:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:31:01,868 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:01,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:01,975 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 16:31:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:01,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 44 states and 52 transitions. [2022-10-17 16:31:01,993 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-10-17 16:31:01,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:31:01,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:01,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:02,022 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 16:31:02,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:02,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2022-10-17 16:31:02,045 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-10-17 16:31:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:31:02,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:02,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:02,282 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 16:31:03,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:03,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 47 states and 57 transitions. [2022-10-17 16:31:03,014 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-10-17 16:31:03,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:31:03,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:03,193 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 16:31:03,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 46 states and 56 transitions. [2022-10-17 16:31:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2022-10-17 16:31:03,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:31:03,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:03,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:03,750 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 16:31:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2022-10-17 16:31:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2022-10-17 16:31:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:04,124 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:04,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:04,234 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 16:31:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 55 states and 73 transitions. [2022-10-17 16:31:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2022-10-17 16:31:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:04,467 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:04,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:04,605 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 16:31:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:04,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 61 states and 85 transitions. [2022-10-17 16:31:04,814 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 85 transitions. [2022-10-17 16:31:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:04,817 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:04,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:04,951 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 16:31:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:05,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 65 states and 92 transitions. [2022-10-17 16:31:05,607 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 92 transitions. [2022-10-17 16:31:05,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:05,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:05,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:05,632 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 16:31:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 64 states and 91 transitions. [2022-10-17 16:31:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 91 transitions. [2022-10-17 16:31:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:31:05,664 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:05,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:05,784 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 16:31:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 65 states and 98 transitions. [2022-10-17 16:31:05,872 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2022-10-17 16:31:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:31:05,873 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:06,189 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 16:31:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:07,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 103 transitions. [2022-10-17 16:31:07,205 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 103 transitions. [2022-10-17 16:31:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:31:07,206 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:07,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:07,239 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 16:31:07,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 67 states and 102 transitions. [2022-10-17 16:31:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2022-10-17 16:31:07,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:31:07,442 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:07,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:07,557 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 16:31:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 69 states and 108 transitions. [2022-10-17 16:31:07,821 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 108 transitions. [2022-10-17 16:31:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:31:07,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:07,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:08,069 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 16:31:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 69 states and 107 transitions. [2022-10-17 16:31:08,732 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 107 transitions. [2022-10-17 16:31:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:31:08,733 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:09,049 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 16:31:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:09,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 46 states and 67 transitions. [2022-10-17 16:31:09,789 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 67 transitions. [2022-10-17 16:31:09,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:31:09,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:09,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:31:12,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 51 states and 77 transitions. [2022-10-17 16:31:12,189 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 77 transitions. [2022-10-17 16:31:12,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:31:12,190 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:12,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:31:12,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:31:12,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:31:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 52 states and 79 transitions. [2022-10-17 16:31:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2022-10-17 16:31:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:31:12,691 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:31:12,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:31:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:31:12,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:31:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:31:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:31:12,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:31:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:31:12,835 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 24 iterations. [2022-10-17 16:31:12,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:31:12 ImpRootNode [2022-10-17 16:31:12,869 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:31:12,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:31:12,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:31:12,870 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:31:12,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:30:59" (3/4) ... [2022-10-17 16:31:12,873 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:31:12,921 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:31:12,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:31:12,923 INFO L158 Benchmark]: Toolchain (without parser) took 14340.93ms. Allocated memory was 77.6MB in the beginning and 148.9MB in the end (delta: 71.3MB). Free memory was 58.0MB in the beginning and 49.2MB in the end (delta: 8.8MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,923 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 77.6MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:31:12,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.52ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 57.7MB in the beginning and 71.4MB in the end (delta: -13.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.11ms. Allocated memory is still 102.8MB. Free memory was 71.1MB in the beginning and 69.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,926 INFO L158 Benchmark]: Boogie Preprocessor took 49.44ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 67.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,927 INFO L158 Benchmark]: RCFGBuilder took 544.35ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 51.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,928 INFO L158 Benchmark]: CodeCheck took 13083.52ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 51.8MB in the beginning and 52.4MB in the end (delta: -565.4kB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,929 INFO L158 Benchmark]: Witness Printer took 52.01ms. Allocated memory is still 148.9MB. Free memory was 52.4MB in the beginning and 49.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:31:12,934 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, 38 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 24, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1414 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1081 mSDsluCounter, 1281 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 919 mSDsCounter, 873 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3538 IncrementalHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 873 mSolverCounterUnsat, 362 mSDtfsCounter, 3538 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1656 GetRequests, 1438 SyntacticMatches, 46 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13561 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 1089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 21 PerfectInterpolantSequences, 6/8 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: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; VAL [a={-1:0}, p={-1:0}] [L536] a->h = 2 VAL [a={-1:0}, p={-1:0}] [L537] COND FALSE !(__VERIFIER_nondet_int()) [L544] p->h = 2 VAL [a={-1:0}, p={-1:0}] [L545] p->n = 0 [L546] p = a VAL [a={-1:0}, p={-1:0}] [L547] COND TRUE p!=0 VAL [a={-1:0}, p={-1:0}] [L548] EXPR p->h VAL [a={-1:0}, p={-1:0}, p->h=2] [L548] COND FALSE !(p->h != 2) [L551] EXPR p->n [L551] p = p->n [L547] COND FALSE !(p!=0) [L553] return 0; VAL [\result=0, a={-1:0}, p={0:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 77.6MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.52ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 57.7MB in the beginning and 71.4MB in the end (delta: -13.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.11ms. Allocated memory is still 102.8MB. Free memory was 71.1MB in the beginning and 69.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.44ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 67.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 544.35ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 51.8MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 13083.52ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 51.8MB in the beginning and 52.4MB in the end (delta: -565.4kB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 52.01ms. Allocated memory is still 148.9MB. Free memory was 52.4MB in the beginning and 49.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:31:13,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bf25c9-8c45-40f1-84a6-3cfcc9ea4dd9/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)