./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.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_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/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_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/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_3786513d-5994-4154-9854-c8be05413f82/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 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- 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 16:34:38,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:34:38,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:34:38,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:34:38,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:34:38,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:34:38,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:34:38,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:34:38,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:34:38,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:34:38,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:34:38,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:34:38,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:34:38,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:34:38,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:34:38,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:34:38,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:34:38,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:34:38,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:34:38,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:34:38,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:34:38,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:34:38,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:34:38,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:34:38,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:34:38,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:34:38,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:34:38,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:34:38,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:34:38,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:34:38,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:34:38,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:34:38,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:34:38,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:34:38,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:34:38,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:34:38,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:34:38,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:34:38,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:34:38,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:34:38,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:34:38,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:34:38,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:34:38,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:34:38,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:34:38,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:34:38,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:34:38,421 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:34:38,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:34:38,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:34:38,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:34:38,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:34:38,422 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:34:38,422 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:34:38,422 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:34:38,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:34:38,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:34:38,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:34:38,423 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:34:38,423 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:34:38,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:34:38,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:38,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:34:38,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:34:38,433 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:34:38,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:34:38,434 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_3786513d-5994-4154-9854-c8be05413f82/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2022-10-17 16:34:38,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:34:38,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:34:38,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:34:38,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:34:38,736 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:34:38,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/verifythis/elimination_max_rec.c [2022-10-17 16:34:38,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/data/19220876e/ef6e51d0e1ee467bb74ed8eeee01ff6c/FLAG48e9ddb64 [2022-10-17 16:34:39,327 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:34:39,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/sv-benchmarks/c/verifythis/elimination_max_rec.c [2022-10-17 16:34:39,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/data/19220876e/ef6e51d0e1ee467bb74ed8eeee01ff6c/FLAG48e9ddb64 [2022-10-17 16:34:39,665 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/data/19220876e/ef6e51d0e1ee467bb74ed8eeee01ff6c [2022-10-17 16:34:39,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:34:39,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:34:39,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:39,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:34:39,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:34:39,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:39" (1/1) ... [2022-10-17 16:34:39,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614ba062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:39, skipping insertion in model container [2022-10-17 16:34:39,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:34:39" (1/1) ... [2022-10-17 16:34:39,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:34:39,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:34:39,919 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_3786513d-5994-4154-9854-c8be05413f82/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2022-10-17 16:34:39,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:39,978 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:34:39,995 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_3786513d-5994-4154-9854-c8be05413f82/sv-benchmarks/c/verifythis/elimination_max_rec.c[493,506] [2022-10-17 16:34:40,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:34:40,037 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:34:40,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40 WrapperNode [2022-10-17 16:34:40,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:34:40,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:40,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:34:40,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:34:40,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,102 INFO L138 Inliner]: procedures = 19, calls = 20, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 82 [2022-10-17 16:34:40,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:34:40,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:34:40,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:34:40,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:34:40,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,128 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:34:40,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:34:40,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:34:40,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:34:40,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:34:40,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:34:40,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:34:40,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3786513d-5994-4154-9854-c8be05413f82/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:34:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:34:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:34:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure check [2022-10-17 16:34:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2022-10-17 16:34:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:34:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:34:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:34:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:34:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:34:40,298 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:34:40,300 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:34:40,565 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:34:40,709 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:34:40,709 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:34:40,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:40 BoogieIcfgContainer [2022-10-17 16:34:40,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:34:40,727 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:34:40,727 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:34:40,751 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:34:40,751 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:34:40" (1/1) ... [2022-10-17 16:34:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:34:40,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 38 states and 41 transitions. [2022-10-17 16:34:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-10-17 16:34:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:34:40,833 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:40,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:41,270 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 16:34:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:41,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 41 states and 45 transitions. [2022-10-17 16:34:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-10-17 16:34:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:34:41,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:41,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:41,583 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 16:34:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 46 states and 53 transitions. [2022-10-17 16:34:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-10-17 16:34:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:34:42,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:42,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:42,455 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 16:34:43,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 51 states and 61 transitions. [2022-10-17 16:34:43,623 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2022-10-17 16:34:43,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:34:43,624 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:43,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:43,691 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 16:34:43,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 60 transitions. [2022-10-17 16:34:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-10-17 16:34:43,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:34:43,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:43,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:43,773 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 16:34:43,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:43,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 59 transitions. [2022-10-17 16:34:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-10-17 16:34:43,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:34:43,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:44,146 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 16:34:45,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:45,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 64 transitions. [2022-10-17 16:34:45,031 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2022-10-17 16:34:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:34:45,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:45,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:45,106 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 16:34:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 63 transitions. [2022-10-17 16:34:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2022-10-17 16:34:45,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:34:45,575 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:45,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:45,612 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 16:34:45,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 51 states and 62 transitions. [2022-10-17 16:34:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-10-17 16:34:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:34:45,997 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:45,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:46,173 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 16:34:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 50 states and 61 transitions. [2022-10-17 16:34:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2022-10-17 16:34:47,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:34:47,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:47,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:47,549 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 16:34:48,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 54 states and 68 transitions. [2022-10-17 16:34:48,798 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2022-10-17 16:34:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:34:48,799 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:48,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:49,798 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 16:34:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 64 states and 87 transitions. [2022-10-17 16:34:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 87 transitions. [2022-10-17 16:34:53,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:34:53,929 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:53,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:54,987 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 16:34:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:56,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 66 states and 91 transitions. [2022-10-17 16:34:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2022-10-17 16:34:56,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 16:34:56,258 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:56,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:56,315 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 16:34:57,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 66 states and 90 transitions. [2022-10-17 16:34:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2022-10-17 16:34:57,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:34:57,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:57,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:57,059 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 16:34:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 68 states and 94 transitions. [2022-10-17 16:34:57,106 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2022-10-17 16:34:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:34:57,110 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:57,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:34:57,628 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 16:34:59,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:34:59,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 71 states and 104 transitions. [2022-10-17 16:34:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2022-10-17 16:34:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:34:59,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:34:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:34:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:00,555 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 16:35:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 74 states and 107 transitions. [2022-10-17 16:35:01,636 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 107 transitions. [2022-10-17 16:35:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:35:01,636 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:01,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:01,665 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 16:35:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:01,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 73 states and 106 transitions. [2022-10-17 16:35:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 106 transitions. [2022-10-17 16:35:01,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:35:01,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:01,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:03,129 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 16:35:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 79 states and 137 transitions. [2022-10-17 16:35:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 137 transitions. [2022-10-17 16:35:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:35:07,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:07,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.