./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak --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 072df04afae5ae28487e0b8208c52f13961dea34 ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:27:31,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:27:31,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:27:31,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:27:31,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:27:31,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:27:31,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:27:31,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:27:31,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:27:31,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:27:31,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:27:31,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:27:31,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:27:31,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:27:31,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:27:31,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:27:31,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:27:31,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:27:31,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:27:31,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:27:31,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:27:32,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:27:32,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:27:32,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:27:32,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:27:32,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:27:32,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:27:32,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:27:32,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:27:32,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:27:32,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:27:32,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:27:32,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:27:32,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:27:32,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:27:32,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:27:32,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:27:32,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:27:32,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:27:32,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:27:32,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:27:32,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2020-12-01 17:27:32,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:27:32,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:27:32,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:27:32,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:27:32,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:27:32,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:27:32,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:27:32,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:27:32,062 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 17:27:32,063 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 17:27:32,063 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 17:27:32,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:27:32,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:27:32,064 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:27:32,064 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:27:32,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:27:32,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:27:32,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:27:32,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:27:32,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:27:32,066 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:27:32,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:27:32,067 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-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2020-12-01 17:27:32,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:27:32,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:27:32,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:27:32,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:27:32,449 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:27:32,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-12-01 17:27:32,552 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/data/577792aec/f704a48e46834b56a1b3fdbb56a66caf/FLAGb845f8462 [2020-12-01 17:27:33,086 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:27:33,087 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-12-01 17:27:33,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/data/577792aec/f704a48e46834b56a1b3fdbb56a66caf/FLAGb845f8462 [2020-12-01 17:27:33,468 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/data/577792aec/f704a48e46834b56a1b3fdbb56a66caf [2020-12-01 17:27:33,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:27:33,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:27:33,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:27:33,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:27:33,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:27:33,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f60269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33, skipping insertion in model container [2020-12-01 17:27:33,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:27:33,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:27:33,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:27:33,718 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:27:33,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:27:33,802 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:27:33,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33 WrapperNode [2020-12-01 17:27:33,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:27:33,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:27:33,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:27:33,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:27:33,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:27:33,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:27:33,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:27:33,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:27:33,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... [2020-12-01 17:27:33,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:27:33,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:27:33,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:27:33,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:27:33,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:27:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:27:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 17:27:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:27:34,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:27:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 17:27:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:27:34,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 17:27:34,320 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:27:34,321 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:27:34,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:27:34 BoogieIcfgContainer [2020-12-01 17:27:34,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:27:34,326 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:27:34,326 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:27:34,349 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:27:34,349 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:27:34" (1/1) ... [2020-12-01 17:27:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:27:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2020-12-01 17:27:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-12-01 17:27:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 17:27:34,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:34,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2020-12-01 17:27:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-01 17:27:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 17:27:34,637 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:34,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2020-12-01 17:27:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-01 17:27:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:27:34,955 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:35,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-01 17:27:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-01 17:27:35,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 17:27:35,056 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2020-12-01 17:27:35,336 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-01 17:27:35,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:27:35,337 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:35,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-12-01 17:27:35,412 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-01 17:27:35,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:27:35,412 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:35,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2020-12-01 17:27:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-12-01 17:27:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:27:35,467 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-12-01 17:27:35,960 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-12-01 17:27:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:27:35,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:36,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-12-01 17:27:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-12-01 17:27:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:27:36,002 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-12-01 17:27:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-12-01 17:27:36,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:27:36,047 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-12-01 17:27:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-12-01 17:27:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:27:36,113 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:27:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2020-12-01 17:27:36,225 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-01 17:27:36,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:27:36,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:27:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:27:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:27:36,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:27:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 17:27:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 17:27:36,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:27:36,366 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2020-12-01 17:27:36,377 INFO L765 CodeCheckObserver]: All specifications hold 11 specifications checked. All of them hold [2020-12-01 17:27:36,461 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-12-01 17:27:36,469 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:27:36,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:27:36,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:27:36,476 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:27:36,478 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 17:27:36,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:27:36,480 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:27:36,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:27:36 ImpRootNode [2020-12-01 17:27:36,482 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:27:36,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:27:36,485 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:27:36,486 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:27:36,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:27:34" (3/4) ... [2020-12-01 17:27:36,490 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:27:36,507 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 17:27:36,508 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:27:36,508 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 17:27:36,554 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((a == 0 && a + 12 <= unknown-#length-unknown[a]) && \valid[a := 0] == \old(unknown-main_\old_#valid-unknown)) && \valid[a] == 1 [2020-12-01 17:27:36,555 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 17:27:36,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6e9c99e-1cef-462f-8de8-22662fed5b6c/bin/ukojak/witness.graphml [2020-12-01 17:27:36,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:27:36,588 INFO L168 Benchmark]: Toolchain (without parser) took 3113.16 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 63.1 MB in the beginning and 96.2 MB in the end (delta: -33.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:27:36,588 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 98.6 MB. Free memory was 79.1 MB in the beginning and 79.0 MB in the end (delta: 55.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:27:36,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.77 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 76.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:27:36,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.01 ms. Allocated memory is still 98.6 MB. Free memory was 76.5 MB in the beginning and 75.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:27:36,590 INFO L168 Benchmark]: Boogie Preprocessor took 45.78 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 74.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:27:36,591 INFO L168 Benchmark]: RCFGBuilder took 417.13 ms. Allocated memory is still 98.6 MB. Free memory was 74.1 MB in the beginning and 58.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:27:36,592 INFO L168 Benchmark]: CodeCheck took 2156.81 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 58.5 MB in the beginning and 98.3 MB in the end (delta: -39.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:27:36,600 INFO L168 Benchmark]: Witness Printer took 101.03 ms. Allocated memory is still 132.1 MB. Free memory was 98.3 MB in the beginning and 96.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:27:36,604 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, 21 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1408 SDtfs, 4652 SDslu, 1540 SDs, 0 SdLazy, 33468 SolverSat, 14876 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 480 GetRequests, 444 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 1811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 2/2 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: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant [2020-12-01 17:27:36,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:27:36,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:27:36,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:27:36,613 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((a == 0 && a + 12 <= unknown-#length-unknown[a]) && \valid[a := 0] == \old(unknown-main_\old_#valid-unknown)) && \valid[a] == 1 - InvariantResult [Line: 8]: Loop Invariant [2020-12-01 17:27:36,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:27:36,614 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 98.6 MB. Free memory was 79.1 MB in the beginning and 79.0 MB in the end (delta: 55.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.77 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 76.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.01 ms. Allocated memory is still 98.6 MB. Free memory was 76.5 MB in the beginning and 75.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.78 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 74.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 417.13 ms. Allocated memory is still 98.6 MB. Free memory was 74.1 MB in the beginning and 58.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 2156.81 ms. Allocated memory was 98.6 MB in the beginning and 132.1 MB in the end (delta: 33.6 MB). Free memory was 58.5 MB in the beginning and 98.3 MB in the end (delta: -39.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 101.03 ms. Allocated memory is still 132.1 MB. Free memory was 98.3 MB in the beginning and 96.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...