./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/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_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 --- 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 16:54:32,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:54:32,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:54:32,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:54:32,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:54:32,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:54:32,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:54:32,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:54:32,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:54:32,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:54:32,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:54:32,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:54:32,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:54:32,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:54:32,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:54:32,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:54:32,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:54:32,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:54:32,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:54:32,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:54:32,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:54:32,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:54:32,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:54:32,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:54:32,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:54:32,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:54:32,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:54:32,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:54:32,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:54:32,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:54:32,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:54:32,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:54:32,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:54:32,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:54:32,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:54:32,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:54:32,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:54:32,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:54:32,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:54:32,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:54:32,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:54:32,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:54:32,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:54:32,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:54:32,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:54:32,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:54:32,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:54:32,429 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:54:32,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:54:32,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:54:32,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:54:32,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:54:32,431 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:54:32,431 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:54:32,431 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:54:32,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:54:32,432 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:54:32,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:54:32,432 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:54:32,432 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:54:32,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:54:32,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:32,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:54:32,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:54:32,433 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:54:32,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:54:32,434 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_f866c77c-9469-4f44-87f8-75a2ef18aa30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a80fea07b3dad363ac033c87feb8bfcf28a57d2e75bc95b67f90908b133efe1 [2022-10-17 16:54:32,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:54:32,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:54:32,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:54:32,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:54:32,787 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:54:32,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2022-10-17 16:54:32,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/data/6136e327f/f241d504324e4d28bd738cfc6bab2cac/FLAG4e0848b23 [2022-10-17 16:54:33,295 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:54:33,296 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2022-10-17 16:54:33,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/data/6136e327f/f241d504324e4d28bd738cfc6bab2cac/FLAG4e0848b23 [2022-10-17 16:54:33,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/data/6136e327f/f241d504324e4d28bd738cfc6bab2cac [2022-10-17 16:54:33,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:54:33,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:54:33,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:33,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:54:33,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:54:33,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:33" (1/1) ... [2022-10-17 16:54:33,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320a8aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:33, skipping insertion in model container [2022-10-17 16:54:33,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:33" (1/1) ... [2022-10-17 16:54:33,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:54:33,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:54:33,929 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_f866c77c-9469-4f44-87f8-75a2ef18aa30/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2022-10-17 16:54:33,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:33,962 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:54:33,975 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_f866c77c-9469-4f44-87f8-75a2ef18aa30/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c[502,515] [2022-10-17 16:54:33,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:34,000 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:54:34,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34 WrapperNode [2022-10-17 16:54:34,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:34,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:34,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:54:34,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:54:34,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,042 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 98 [2022-10-17 16:54:34,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:34,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:54:34,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:54:34,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:54:34,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:54:34,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:54:34,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:54:34,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:54:34,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:34,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:54:34,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:54:34,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f866c77c-9469-4f44-87f8-75a2ef18aa30/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:54:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:54:34,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:54:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure check [2022-10-17 16:54:34,180 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2022-10-17 16:54:34,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:54:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:54:34,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:54:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:54:34,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:54:34,289 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:54:34,291 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:54:34,670 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:54:34,821 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:54:34,821 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:54:34,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:34 BoogieIcfgContainer [2022-10-17 16:54:34,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:54:34,828 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:54:34,829 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:54:34,841 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:54:34,841 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:54:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 48 states and 52 transitions. [2022-10-17 16:54:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-10-17 16:54:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:54:34,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:34,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,400 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 16:54:35,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 51 states and 56 transitions. [2022-10-17 16:54:35,532 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-17 16:54:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:54:35,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,746 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 16:54:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 56 states and 64 transitions. [2022-10-17 16:54:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2022-10-17 16:54:36,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:54:36,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:36,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:36,672 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 16:54:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 61 states and 72 transitions. [2022-10-17 16:54:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2022-10-17 16:54:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:54:37,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:37,852 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 16:54:37,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:37,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 60 states and 71 transitions. [2022-10-17 16:54:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2022-10-17 16:54:37,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:54:37,892 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:37,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:38,198 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 16:54:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 59 states and 70 transitions. [2022-10-17 16:54:38,794 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-10-17 16:54:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:54:38,795 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:38,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:38,852 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 16:54:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 58 states and 69 transitions. [2022-10-17 16:54:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-10-17 16:54:38,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:54:38,883 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:39,252 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 16:54:40,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:40,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 62 states and 74 transitions. [2022-10-17 16:54:40,192 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 74 transitions. [2022-10-17 16:54:40,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:54:40,192 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:40,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:40,221 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 16:54:40,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:40,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 61 states and 73 transitions. [2022-10-17 16:54:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2022-10-17 16:54:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:54:40,256 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:40,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:40,686 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 16:54:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 66 states and 83 transitions. [2022-10-17 16:54:42,135 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2022-10-17 16:54:42,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:54:42,136 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:42,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:42,514 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 16:54:44,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:44,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 67 states and 83 transitions. [2022-10-17 16:54:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2022-10-17 16:54:44,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:54:44,077 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:44,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:44,111 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 16:54:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 70 states and 86 transitions. [2022-10-17 16:54:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2022-10-17 16:54:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:54:44,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:44,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:48,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:48,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 79 states and 103 transitions. [2022-10-17 16:54:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-10-17 16:54:48,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:54:48,363 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:48,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:48,500 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 16:54:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 83 states and 107 transitions. [2022-10-17 16:54:50,929 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-10-17 16:54:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:54:50,930 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:50,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 89 states and 121 transitions. [2022-10-17 16:54:54,711 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2022-10-17 16:54:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:54:54,712 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:54,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 89 states and 120 transitions. [2022-10-17 16:54:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2022-10-17 16:54:55,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:54:55,563 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:55,582 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 16:54:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 88 states and 119 transitions. [2022-10-17 16:54:56,603 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2022-10-17 16:54:56,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:54:56,604 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:56,628 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 16:54:56,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 90 states and 125 transitions. [2022-10-17 16:54:56,661 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 125 transitions. [2022-10-17 16:54:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:54:56,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:56,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:57,320 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 16:55:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:55:01,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 99 states and 146 transitions. [2022-10-17 16:55:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 146 transitions. [2022-10-17 16:55:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:55:01,852 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:55:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:55:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:55:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:55:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:55:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 102 states and 149 transitions. [2022-10-17 16:55:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2022-10-17 16:55:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:55:03,652 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:55:03,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:55:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:55:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.