./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/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_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/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 64bit --witnessprinter.graph.data.programhash 32689ae30ae51ecba7c5b43dcb93819b27d0e14fbdff3ab2701407818eca0145 --- 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 16:38:08,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:38:08,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:38:08,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:38:08,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:38:08,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:38:08,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:38:08,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:38:08,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:38:08,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:38:08,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:38:08,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:38:08,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:38:08,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:38:08,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:38:08,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:38:08,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:38:08,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:38:08,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:38:08,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:38:08,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:38:08,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:38:08,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:38:08,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:38:08,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:38:08,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:38:08,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:38:08,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:38:08,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:38:08,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:38:08,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:38:08,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:38:08,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:38:08,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:38:08,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:38:08,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:38:08,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:38:08,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:38:08,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:38:08,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:38:08,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:38:08,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2022-10-17 16:38:08,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:38:08,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:38:08,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:38:08,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:38:08,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:38:08,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:38:08,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:38:08,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:38:08,245 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:38:08,245 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:38:08,246 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:38:08,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:38:08,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:38:08,247 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:38:08,247 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:38:08,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:38:08,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:08,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:38:08,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:38:08,249 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:38:08,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:38:08,249 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_bd5d1436-c276-4a61-ac04-1892838609ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32689ae30ae51ecba7c5b43dcb93819b27d0e14fbdff3ab2701407818eca0145 [2022-10-17 16:38:08,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:38:08,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:38:08,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:38:08,527 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:38:08,528 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:38:08,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2022-10-17 16:38:08,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/data/93d5a0d24/005c96043b0a46b7a33d82868bd785ce/FLAG778dd86d6 [2022-10-17 16:38:09,119 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:38:09,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/sv-benchmarks/c/termination-crafted/SyntaxSupportPointer01-3.c [2022-10-17 16:38:09,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/data/93d5a0d24/005c96043b0a46b7a33d82868bd785ce/FLAG778dd86d6 [2022-10-17 16:38:09,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/data/93d5a0d24/005c96043b0a46b7a33d82868bd785ce [2022-10-17 16:38:09,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:38:09,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:38:09,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:09,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:38:09,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:38:09,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba0f680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09, skipping insertion in model container [2022-10-17 16:38:09,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:38:09,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:38:09,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:09,772 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:38:09,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:38:09,806 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:38:09,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09 WrapperNode [2022-10-17 16:38:09,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:38:09,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:09,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:38:09,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:38:09,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,849 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-10-17 16:38:09,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:38:09,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:38:09,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:38:09,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:38:09,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:38:09,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:38:09,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:38:09,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:38:09,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:38:09" (1/1) ... [2022-10-17 16:38:09,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:38:09,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:38:09,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:38:09,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:38:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:38:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:38:09,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:38:09,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:38:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:38:09,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:38:10,053 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:38:10,056 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:38:10,197 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:38:10,216 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:38:10,216 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:38:10,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:10 BoogieIcfgContainer [2022-10-17 16:38:10,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:38:10,221 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:38:10,221 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:38:10,233 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:38:10,233 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:10" (1/1) ... [2022-10-17 16:38:10,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:38:10,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:10,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2022-10-17 16:38:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-10-17 16:38:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:38:10,309 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:10,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:10,483 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 16:38:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:10,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-10-17 16:38:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-10-17 16:38:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:38:10,544 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:10,652 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 16:38:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-10-17 16:38:10,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-10-17 16:38:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:10,788 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:10,831 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 16:38:10,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2022-10-17 16:38:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-10-17 16:38:10,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:10,962 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:10,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:10,994 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 16:38:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2022-10-17 16:38:11,107 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-10-17 16:38:11,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:38:11,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:11,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:11,222 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 16:38:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 23 states and 25 transitions. [2022-10-17 16:38:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-10-17 16:38:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:11,407 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:11,450 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 16:38:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:11,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 27 states and 30 transitions. [2022-10-17 16:38:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-10-17 16:38:11,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:11,700 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:11,768 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 16:38:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2022-10-17 16:38:11,790 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-10-17 16:38:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:38:11,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:11,896 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 16:38:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2022-10-17 16:38:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-10-17 16:38:11,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:38:11,962 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:12,001 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 16:38:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:12,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2022-10-17 16:38:12,203 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-10-17 16:38:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:38:12,203 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:12,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:12,397 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 16:38:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 30 states and 34 transitions. [2022-10-17 16:38:12,997 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-10-17 16:38:12,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:38:12,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:13,021 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 16:38:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2022-10-17 16:38:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-10-17 16:38:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:38:13,049 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:13,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:13,074 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 16:38:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:13,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2022-10-17 16:38:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-10-17 16:38:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:38:13,095 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:38:13,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:38:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:38:13,181 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 16:38:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:38:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-10-17 16:38:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-10-17 16:38:13,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:38:13,214 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2022-10-17 16:38:13,223 INFO L754 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2022-10-17 16:38:13,283 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2022-10-17 16:38:13,297 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 16:38:13,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:38:13 ImpRootNode [2022-10-17 16:38:13,303 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:38:13,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:38:13,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:38:13,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:38:13,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:38:10" (3/4) ... [2022-10-17 16:38:13,311 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:38:13,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-10-17 16:38:13,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:38:13,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 16:38:13,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:38:13,367 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\valid[p := 0] == \old(unknown-main_\old_#valid#1-unknown) && p + 4 <= unknown-#length-unknown[p]) && p == 0) && \valid[p] == 1) && !(unknown-#StackHeapBarrier-unknown <= p) [2022-10-17 16:38:13,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-10-17 16:38:13,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:38:13,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:38:13,402 INFO L158 Benchmark]: Toolchain (without parser) took 3907.74ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 61.1MB in the beginning and 53.3MB in the end (delta: 7.8MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-10-17 16:38:13,403 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 67.1MB in the beginning and 67.1MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:38:13,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.50ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 60.8MB in the beginning and 103.4MB in the end (delta: -42.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:38:13,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.04ms. Allocated memory is still 127.9MB. Free memory was 103.4MB in the beginning and 102.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:13,406 INFO L158 Benchmark]: Boogie Preprocessor took 51.20ms. Allocated memory is still 127.9MB. Free memory was 102.1MB in the beginning and 101.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:38:13,406 INFO L158 Benchmark]: RCFGBuilder took 317.66ms. Allocated memory is still 127.9MB. Free memory was 101.0MB in the beginning and 90.0MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 16:38:13,411 INFO L158 Benchmark]: CodeCheck took 3082.59ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 55.3MB in the end (delta: 34.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:13,412 INFO L158 Benchmark]: Witness Printer took 96.91ms. Allocated memory is still 127.9MB. Free memory was 55.3MB in the beginning and 53.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:38:13,415 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, 20 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 351 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 344 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 692 IncrementalHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 64 mSDtfsCounter, 692 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 497 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 6/6 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 18]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 13]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((\valid[p := 0] == \old(unknown-main_\old_#valid#1-unknown) && p + 4 <= unknown-#length-unknown[p]) && p == 0) && \valid[p] == 1) && !(unknown-#StackHeapBarrier-unknown <= p) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: \old(unknown-main_\old_#valid#1-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 67.1MB in the beginning and 67.1MB in the end (delta: 23.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.50ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 60.8MB in the beginning and 103.4MB in the end (delta: -42.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.04ms. Allocated memory is still 127.9MB. Free memory was 103.4MB in the beginning and 102.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.20ms. Allocated memory is still 127.9MB. Free memory was 102.1MB in the beginning and 101.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.66ms. Allocated memory is still 127.9MB. Free memory was 101.0MB in the beginning and 90.0MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3082.59ms. Allocated memory is still 127.9MB. Free memory was 90.0MB in the beginning and 55.3MB in the end (delta: 34.8MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 96.91ms. Allocated memory is still 127.9MB. Free memory was 55.3MB in the beginning and 53.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:38:13,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd5d1436-c276-4a61-ac04-1892838609ca/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 Result: TRUE