./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4 --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 168748c0c54c019ef253d55ab380d3a197e2401ba990ef8210cb41b73a41cb13 --- 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-2329fc7 [2022-12-14 18:29:19,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 18:29:19,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 18:29:19,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 18:29:19,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 18:29:19,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 18:29:19,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 18:29:19,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 18:29:19,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 18:29:19,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 18:29:19,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 18:29:19,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 18:29:19,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 18:29:19,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 18:29:19,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 18:29:19,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 18:29:19,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 18:29:19,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 18:29:19,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 18:29:19,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 18:29:19,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 18:29:19,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 18:29:19,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 18:29:19,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 18:29:19,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 18:29:19,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 18:29:19,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 18:29:19,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 18:29:19,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 18:29:19,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 18:29:19,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 18:29:19,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 18:29:19,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 18:29:19,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 18:29:19,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 18:29:19,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 18:29:19,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 18:29:19,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 18:29:19,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 18:29:19,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 18:29:19,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 18:29:19,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2022-12-14 18:29:19,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 18:29:19,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 18:29:19,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 18:29:19,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 18:29:19,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 18:29:19,745 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 18:29:19,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 18:29:19,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 18:29:19,752 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 18:29:19,752 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 18:29:19,753 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 18:29:19,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 18:29:19,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 18:29:19,753 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 18:29:19,753 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 18:29:19,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 18:29:19,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:29:19,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 18:29:19,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 18:29:19,754 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 18:29:19,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 18:29:19,755 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_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168748c0c54c019ef253d55ab380d3a197e2401ba990ef8210cb41b73a41cb13 [2022-12-14 18:29:19,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 18:29:19,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 18:29:19,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 18:29:19,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 18:29:19,942 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 18:29:19,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2022-12-14 18:29:22,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 18:29:22,727 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 18:29:22,727 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2022-12-14 18:29:22,736 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/data/924a1af30/0ab888d6ea2a420c865c2b719e074428/FLAG3be43eb3d [2022-12-14 18:29:22,749 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/data/924a1af30/0ab888d6ea2a420c865c2b719e074428 [2022-12-14 18:29:22,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 18:29:22,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 18:29:22,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 18:29:22,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 18:29:22,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 18:29:22,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:29:22" (1/1) ... [2022-12-14 18:29:22,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ea7a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:22, skipping insertion in model container [2022-12-14 18:29:22,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:29:22" (1/1) ... [2022-12-14 18:29:22,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 18:29:22,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 18:29:23,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:29:23,036 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 18:29:23,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 18:29:23,080 INFO L208 MainTranslator]: Completed translation [2022-12-14 18:29:23,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23 WrapperNode [2022-12-14 18:29:23,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 18:29:23,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 18:29:23,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 18:29:23,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 18:29:23,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,111 INFO L138 Inliner]: procedures = 152, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2022-12-14 18:29:23,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 18:29:23,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 18:29:23,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 18:29:23,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 18:29:23,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,127 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 18:29:23,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 18:29:23,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 18:29:23,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 18:29:23,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 18:29:23,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 18:29:23,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 18:29:23,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 18:29:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 18:29:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 18:29:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 18:29:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 18:29:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 18:29:23,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 18:29:23,251 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 18:29:23,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 18:29:23,356 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 18:29:23,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 18:29:23,383 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 18:29:23,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:29:23 BoogieIcfgContainer [2022-12-14 18:29:23,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 18:29:23,387 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 18:29:23,387 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 18:29:23,396 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 18:29:23,396 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:29:23" (1/1) ... [2022-12-14 18:29:23,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 18:29:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:23,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-12-14 18:29:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 18:29:23,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 18:29:23,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:23,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2022-12-14 18:29:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 18:29:23,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 18:29:23,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:23,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:23,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2022-12-14 18:29:23,888 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 18:29:23,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:29:23,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:23,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2022-12-14 18:29:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 18:29:23,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 18:29:23,971 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:23,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-12-14 18:29:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 18:29:24,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 18:29:24,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:24,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 18:29:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-12-14 18:29:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-12-14 18:29:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 18:29:24,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:24,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:24,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2022-12-14 18:29:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2022-12-14 18:29:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 18:29:25,192 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:25,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2022-12-14 18:29:25,868 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2022-12-14 18:29:25,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 18:29:25,868 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 18:29:25,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 18:29:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 18:29:26,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 18:29:27,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 18:29:27,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-12-14 18:29:27,491 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-12-14 18:29:27,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 18:29:27,491 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2022-12-14 18:29:27,497 INFO L754 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2022-12-14 18:29:27,519 INFO L560 CodeCheckObserver]: Invariant with dag size 21 [2022-12-14 18:29:27,528 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-14 18:29:27,529 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-14 18:29:27,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 06:29:27 ImpRootNode [2022-12-14 18:29:27,529 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 18:29:27,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 18:29:27,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 18:29:27,530 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 18:29:27,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:29:23" (3/4) ... [2022-12-14 18:29:27,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 18:29:27,539 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-14 18:29:27,539 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 18:29:27,539 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 18:29:27,539 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 18:29:27,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((p + 1 <= unknown-#length-unknown[p] && 0 == unknown-#memory_int-unknown[p][0]) && \valid[__builtin_alloca(length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid#1-unknown)) && 0 <= p) && \valid[p] == 1 [2022-12-14 18:29:27,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \valid[__builtin_alloca(length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid#1-unknown) [2022-12-14 18:29:27,556 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-12-14 18:29:27,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 18:29:27,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 18:29:27,563 INFO L158 Benchmark]: Toolchain (without parser) took 4810.41ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 95.4MB in the beginning and 94.0MB in the end (delta: 1.3MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2022-12-14 18:29:27,563 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:29:27,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.43ms. Allocated memory is still 136.3MB. Free memory was 95.4MB in the beginning and 78.0MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 18:29:27,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.16ms. Allocated memory is still 136.3MB. Free memory was 78.0MB in the beginning and 76.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 18:29:27,564 INFO L158 Benchmark]: Boogie Preprocessor took 17.60ms. Allocated memory is still 136.3MB. Free memory was 76.3MB in the beginning and 74.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:29:27,564 INFO L158 Benchmark]: RCFGBuilder took 256.29ms. Allocated memory is still 136.3MB. Free memory was 74.9MB in the beginning and 62.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 18:29:27,565 INFO L158 Benchmark]: CodeCheck took 4142.83ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 62.3MB in the beginning and 97.2MB in the end (delta: -34.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 18:29:27,567 INFO L158 Benchmark]: Witness Printer took 32.79ms. Allocated memory is still 172.0MB. Free memory was 97.2MB in the beginning and 94.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 18:29:27,569 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, 12 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 340 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 8 mSDtfsCounter, 340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 300 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2031 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 1/6 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: 371]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: (((p + 1 <= unknown-#length-unknown[p] && 0 == unknown-#memory_int-unknown[p][0]) && \valid[__builtin_alloca(length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid#1-unknown)) && 0 <= p) && \valid[p] == 1 - InvariantResult [Line: 367]: Loop Invariant Derived loop invariant: \valid[__builtin_alloca(length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid#1-unknown) - InvariantResult [Line: 371]: 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 0.13ms. Allocated memory is still 136.3MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.43ms. Allocated memory is still 136.3MB. Free memory was 95.4MB in the beginning and 78.0MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.16ms. Allocated memory is still 136.3MB. Free memory was 78.0MB in the beginning and 76.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.60ms. Allocated memory is still 136.3MB. Free memory was 76.3MB in the beginning and 74.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 256.29ms. Allocated memory is still 136.3MB. Free memory was 74.9MB in the beginning and 62.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 4142.83ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 62.3MB in the beginning and 97.2MB in the end (delta: -34.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 32.79ms. Allocated memory is still 172.0MB. Free memory was 97.2MB in the beginning and 94.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 18:29:27,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70854398-af00-40cf-92fb-e8f10c37b0a0/bin/ukojak-rkRKPMF4O4/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