./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.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_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/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_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/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_8f54ce7a-2661-4345-bbd8-6484dcc974c8/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 58596999bba5cc256a412be61e4f9e3e6d264c81e8972a76406a7a850d8c4606 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:54:32,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:54:32,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:54:32,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:54:32,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:54:32,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:54:32,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:54:32,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:54:32,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:54:32,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:54:32,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:54:32,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:54:32,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:54:32,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:54:32,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:54:32,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:54:32,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:54:32,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:54:32,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:54:32,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:54:32,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:54:32,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:54:32,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:54:32,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:54:32,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:54:32,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:54:32,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:54:32,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:54:32,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:54:32,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:54:32,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:54:32,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:54:32,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:54:32,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:54:32,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:54:32,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:54:32,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:54:32,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:54:32,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:54:32,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:54:32,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:54:32,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 16:54:32,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:54:32,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:54:32,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:54:32,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:54:32,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:54:32,677 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:54:32,677 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:54:32,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:54:32,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:54:32,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:54:32,679 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 16:54:32,679 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 16:54:32,680 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 16:54:32,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:54:32,680 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:54:32,680 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:54:32,681 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:54:32,681 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:54:32,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:54:32,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:32,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:54:32,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:54:32,682 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:54:32,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:54:32,682 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_8f54ce7a-2661-4345-bbd8-6484dcc974c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58596999bba5cc256a412be61e4f9e3e6d264c81e8972a76406a7a850d8c4606 [2022-10-17 16:54:33,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:54:33,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:54:33,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:54:33,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:54:33,054 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:54:33,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2022-10-17 16:54:33,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/data/ad7526bf4/7d64429787c449bf85f335b8511d0574/FLAGa618a77ae [2022-10-17 16:54:33,679 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:54:33,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2022-10-17 16:54:33,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/data/ad7526bf4/7d64429787c449bf85f335b8511d0574/FLAGa618a77ae [2022-10-17 16:54:34,064 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/data/ad7526bf4/7d64429787c449bf85f335b8511d0574 [2022-10-17 16:54:34,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:54:34,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:54:34,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:34,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:54:34,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:54:34,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@382a8cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34, skipping insertion in model container [2022-10-17 16:54:34,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:54:34,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:54:34,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:34,300 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:54:34,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:54:34,332 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:54:34,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34 WrapperNode [2022-10-17 16:54:34,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:54:34,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:34,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:54:34,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:54:34,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,373 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 29 [2022-10-17 16:54:34,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:54:34,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:54:34,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:54:34,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:54:34,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:54:34,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:54:34,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:54:34,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:54:34,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:54:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:54:34,461 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:54:34,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:54:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:54:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:54:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:54:34,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:54:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 16:54:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:54:34,613 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:54:34,615 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:54:34,777 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:54:34,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:54:34,806 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:54:34,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:34 BoogieIcfgContainer [2022-10-17 16:54:34,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:54:34,810 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:54:34,810 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:54:34,820 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:54:34,821 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:34" (1/1) ... [2022-10-17 16:54:34,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:54:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2022-10-17 16:54:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-10-17 16:54:34,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:54:34,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:34,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2022-10-17 16:54:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-10-17 16:54:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 16:54:35,285 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:35,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2022-10-17 16:54:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-10-17 16:54:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:54:35,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:35,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:35,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2022-10-17 16:54:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-10-17 16:54:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 16:54:35,744 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:35,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:36,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2022-10-17 16:54:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2022-10-17 16:54:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 16:54:36,458 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:54:36,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:54:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:54:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:54:36,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:54:36,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2022-10-17 16:54:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2022-10-17 16:54:36,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:54:36,919 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-10-17 16:54:36,933 INFO L754 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2022-10-17 16:54:36,961 INFO L560 CodeCheckObserver]: Invariant with dag size 18 [2022-10-17 16:54:36,988 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 16:54:36,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:54:36 ImpRootNode [2022-10-17 16:54:36,989 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:54:36,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:54:36,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:54:36,990 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:54:36,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:54:34" (3/4) ... [2022-10-17 16:54:36,995 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:54:37,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-10-17 16:54:37,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-10-17 16:54:37,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:54:37,012 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:54:37,046 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0 <= arr && \old(unknown-main_\old_#valid#1-unknown) == \valid) && 2 == arr) && \valid[arr] == 1) && arr <= 0) && unknown-#length-unknown[arr] == 4096 [2022-10-17 16:54:37,047 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-10-17 16:54:37,070 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:54:37,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:54:37,071 INFO L158 Benchmark]: Toolchain (without parser) took 3002.42ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 70.1MB in the beginning and 90.0MB in the end (delta: -19.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-10-17 16:54:37,072 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 102.8MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:54:37,072 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.41ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 78.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:54:37,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.56ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:54:37,073 INFO L158 Benchmark]: Boogie Preprocessor took 41.93ms. Allocated memory is still 102.8MB. Free memory was 77.5MB in the beginning and 76.5MB in the end (delta: 958.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:54:37,074 INFO L158 Benchmark]: RCFGBuilder took 391.87ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 65.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:54:37,075 INFO L158 Benchmark]: CodeCheck took 2179.28ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 65.3MB in the beginning and 92.9MB in the end (delta: -27.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-10-17 16:54:37,080 INFO L158 Benchmark]: Witness Printer took 80.30ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 90.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:54:37,083 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, 10 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 16]: 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: 6]: Loop Invariant Derived loop invariant: ((((0 <= arr && \old(unknown-main_\old_#valid#1-unknown) == \valid) && 2 == arr) && \valid[arr] == 1) && arr <= 0) && unknown-#length-unknown[arr] == 4096 - InvariantResult [Line: 16]: 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 0.65ms. Allocated memory is still 102.8MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.41ms. Allocated memory is still 102.8MB. Free memory was 69.8MB in the beginning and 78.9MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.56ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.93ms. Allocated memory is still 102.8MB. Free memory was 77.5MB in the beginning and 76.5MB in the end (delta: 958.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.87ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 65.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2179.28ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 65.3MB in the beginning and 92.9MB in the end (delta: -27.6MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Witness Printer took 80.30ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 90.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:54:37,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f54ce7a-2661-4345-bbd8-6484dcc974c8/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