./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/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 32bit --witnessprinter.graph.data.programhash 86b203c3a804c103d90401bd32cfcff28939b920 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:44:46,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:44:46,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:44:46,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:44:46,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:44:46,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:44:46,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:44:46,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:44:46,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:44:46,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:44:46,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:44:46,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:44:46,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:44:46,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:44:46,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:44:46,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:44:46,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:44:46,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:44:46,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:44:46,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:44:46,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:44:46,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:44:46,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:44:46,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:44:46,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:44:46,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:44:46,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:44:46,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:44:46,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:44:46,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:44:46,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:44:46,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:44:46,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:44:46,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:44:46,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:44:46,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:44:46,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:44:46,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:44:46,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:44:46,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:44:46,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:44:46,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 17:44:46,620 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:44:46,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:44:46,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:44:46,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:44:46,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:44:46,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:44:46,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:44:46,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:44:46,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:44:46,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:44:46,627 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 17:44:46,627 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 17:44:46,628 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 17:44:46,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:44:46,628 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:44:46,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:44:46,629 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:44:46,629 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:44:46,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:44:46,630 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:44:46,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:44:46,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:44:46,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:44:46,631 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:44:46,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:44:46,631 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_dc2130b7-789a-4eee-815c-071b95950253/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b203c3a804c103d90401bd32cfcff28939b920 [2020-12-01 17:44:47,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:44:47,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:44:47,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:44:47,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:44:47,103 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:44:47,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-12-01 17:44:47,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/data/5f2fb35bd/764845badb2940d1b92779dcdbe66cb2/FLAG01ba972fc [2020-12-01 17:44:48,000 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:44:48,003 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-12-01 17:44:48,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/data/5f2fb35bd/764845badb2940d1b92779dcdbe66cb2/FLAG01ba972fc [2020-12-01 17:44:48,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/data/5f2fb35bd/764845badb2940d1b92779dcdbe66cb2 [2020-12-01 17:44:48,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:44:48,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:44:48,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:44:48,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:44:48,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:44:48,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113a0954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48, skipping insertion in model container [2020-12-01 17:44:48,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:44:48,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:44:48,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:44:48,622 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:44:48,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:44:48,764 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:44:48,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48 WrapperNode [2020-12-01 17:44:48,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:44:48,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:44:48,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:44:48,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:44:48,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:44:48,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:44:48,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:44:48,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:44:48,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... [2020-12-01 17:44:48,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:44:48,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:44:48,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:44:48,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:44:48,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:44:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/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 17:44:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:44:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 17:44:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 17:44:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 17:44:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:44:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:44:49,467 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:44:49,467 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 17:44:49,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:44:49 BoogieIcfgContainer [2020-12-01 17:44:49,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:44:49,471 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:44:49,472 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:44:49,485 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:44:49,485 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:44:49" (1/1) ... [2020-12-01 17:44:49,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:44:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 32 states and 33 transitions. [2020-12-01 17:44:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-12-01 17:44:49,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:44:49,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:49,803 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 17:44:49,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2020-12-01 17:44:49,917 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-12-01 17:44:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:44:49,917 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:50,057 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 17:44:50,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:50,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 30 states and 31 transitions. [2020-12-01 17:44:50,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-12-01 17:44:50,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:44:50,380 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:50,417 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 17:44:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2020-12-01 17:44:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-12-01 17:44:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:44:50,444 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:50,549 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 17:44:50,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2020-12-01 17:44:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-12-01 17:44:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:44:50,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:50,837 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 17:44:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:50,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 27 states and 28 transitions. [2020-12-01 17:44:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-12-01 17:44:50,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:44:50,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:50,883 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 17:44:50,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:50,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 26 states and 27 transitions. [2020-12-01 17:44:50,950 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-01 17:44:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:44:50,952 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:51,013 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 17:44:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:51,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2020-12-01 17:44:51,040 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-12-01 17:44:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:44:51,041 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:51,107 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 17:44:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 24 states and 25 transitions. [2020-12-01 17:44:51,133 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-12-01 17:44:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:44:51,134 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:51,273 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 17:44:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:51,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 23 states and 24 transitions. [2020-12-01 17:44:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-12-01 17:44:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:44:51,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:51,705 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 17:44:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 22 states and 23 transitions. [2020-12-01 17:44:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-01 17:44:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:44:52,699 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:52,742 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 17:44:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2020-12-01 17:44:53,150 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-12-01 17:44:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:44:53,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:53,467 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 17:44:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2020-12-01 17:44:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-01 17:44:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:44:55,482 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:44:55,818 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 17:44:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:44:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2020-12-01 17:44:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-01 17:44:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:44:59,299 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:44:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:45:00,177 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 17:45:05,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:45:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-12-01 17:45:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-01 17:45:05,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:45:05,397 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:45:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:45:06,925 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 17:45:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:45:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2020-12-01 17:45:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-01 17:45:16,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:45:16,294 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-12-01 17:45:16,303 INFO L765 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2020-12-01 17:45:16,506 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:45:16,511 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 17:45:16,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,533 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2020-12-01 17:45:16,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,538 INFO L569 CodeCheckObserver]: Invariant with dag size 28 [2020-12-01 17:45:16,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,544 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:45:16,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:45:16 ImpRootNode [2020-12-01 17:45:16,546 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:45:16,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:45:16,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:45:16,548 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:45:16,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:44:49" (3/4) ... [2020-12-01 17:45:16,553 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:45:16,568 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 17:45:16,569 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:45:16,569 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 17:45:16,616 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\valid[temp] == 1 && 0 <= temp) && 4 == unknown-#length-unknown[temp]) && \valid[temp := 0] == \old(unknown-main_\old_#valid-unknown)) && temp <= 0) && temp + 1 <= unknown-#StackHeapBarrier-unknown [2020-12-01 17:45:16,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 == temp && 0 <= s) && s + 1 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && \valid[s := 0][temp := 0] == \old(unknown-main_\old_#valid-unknown)) && \valid[s := 0][temp] == 1) && \valid[s] == 1) && temp + 1 <= unknown-#StackHeapBarrier-unknown) && unknown-#length-unknown[s] == 4 [2020-12-01 17:45:16,618 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 17:45:16,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dc2130b7-789a-4eee-815c-071b95950253/bin/ukojak/witness.graphml [2020-12-01 17:45:16,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:45:16,662 INFO L168 Benchmark]: Toolchain (without parser) took 28436.52 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 69.5 MB in the beginning and 124.2 MB in the end (delta: -54.7 MB). Peak memory consumption was 108.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:45:16,663 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 79.7 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:45:16,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.57 ms. Allocated memory is still 100.7 MB. Free memory was 69.3 MB in the beginning and 49.5 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:45:16,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.61 ms. Allocated memory is still 100.7 MB. Free memory was 49.5 MB in the beginning and 47.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:45:16,665 INFO L168 Benchmark]: Boogie Preprocessor took 40.27 ms. Allocated memory is still 100.7 MB. Free memory was 47.7 MB in the beginning and 46.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:45:16,666 INFO L168 Benchmark]: RCFGBuilder took 594.58 ms. Allocated memory is still 100.7 MB. Free memory was 46.5 MB in the beginning and 58.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:45:16,667 INFO L168 Benchmark]: CodeCheck took 27074.47 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 58.6 MB in the beginning and 127.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:45:16,668 INFO L168 Benchmark]: Witness Printer took 113.74 ms. Allocated memory is still 262.1 MB. Free memory was 127.4 MB in the beginning and 124.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:45:16,685 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, 32 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.7s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98432 SDtfs, 91840 SDslu, 98560 SDs, 0 SdLazy, 481350 SolverSat, 168594 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 981 GetRequests, 727 SyntacticMatches, 6 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25448 ImplicationChecksByTransitivity, 24.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 5957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant [2020-12-01 17:45:16,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 563]: Loop Invariant [2020-12-01 17:45:16,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,703 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((\valid[temp] == 1 && 0 <= temp) && 4 == unknown-#length-unknown[temp]) && \valid[temp := 0] == \old(unknown-main_\old_#valid-unknown)) && temp <= 0) && temp + 1 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 563]: Loop Invariant [2020-12-01 17:45:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 17:45:16,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 17:45:16,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-12-01 17:45:16,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((0 == temp && 0 <= s) && s + 1 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && \valid[s := 0][temp := 0] == \old(unknown-main_\old_#valid-unknown)) && \valid[s := 0][temp] == 1) && \valid[s] == 1) && temp + 1 <= unknown-#StackHeapBarrier-unknown) && unknown-#length-unknown[s] == 4 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 79.7 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 538.57 ms. Allocated memory is still 100.7 MB. Free memory was 69.3 MB in the beginning and 49.5 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.61 ms. Allocated memory is still 100.7 MB. Free memory was 49.5 MB in the beginning and 47.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.27 ms. Allocated memory is still 100.7 MB. Free memory was 47.7 MB in the beginning and 46.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 594.58 ms. Allocated memory is still 100.7 MB. Free memory was 46.5 MB in the beginning and 58.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * CodeCheck took 27074.47 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 58.6 MB in the beginning and 127.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 16.1 GB. * Witness Printer took 113.74 ms. Allocated memory is still 262.1 MB. Free memory was 127.4 MB in the beginning and 124.2 MB in the end (delta: 3.1 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 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 #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...