./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/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 0775aa74e42740d69127a88680deb3bae2149559 .................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:38:56,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:56,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:56,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:56,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:56,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:56,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:56,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:56,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:56,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:56,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:56,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:56,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:56,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:56,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:56,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:56,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:56,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:56,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:56,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:56,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:56,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:56,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:56,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:56,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:56,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:56,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:56,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:56,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:56,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:56,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:56,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:56,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:56,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:56,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:56,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:56,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:56,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:56,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:56,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:56,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:56,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:38:56,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:56,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:56,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:56,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:56,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:56,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:56,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:38:56,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:56,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:56,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:56,373 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:38:56,373 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:38:56,373 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:38:56,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:56,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:56,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:56,374 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:56,374 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:56,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:56,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:56,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:56,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:56,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:56,376 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:56,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:56,376 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_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0775aa74e42740d69127a88680deb3bae2149559 [2020-11-28 04:38:56,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:56,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:56,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:56,625 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:56,625 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:56,626 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/../../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2020-11-28 04:38:56,700 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/data/5c57892f4/c32234e57718440a9512b755d9415476/FLAGb32ffa532 [2020-11-28 04:38:57,215 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:57,216 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2020-11-28 04:38:57,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/data/5c57892f4/c32234e57718440a9512b755d9415476/FLAGb32ffa532 [2020-11-28 04:38:57,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/data/5c57892f4/c32234e57718440a9512b755d9415476 [2020-11-28 04:38:57,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:57,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:57,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:57,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:57,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:57,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:57" (1/1) ... [2020-11-28 04:38:57,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595ed39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:57, skipping insertion in model container [2020-11-28 04:38:57,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:57" (1/1) ... [2020-11-28 04:38:57,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:57,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:58,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:58,090 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:58,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:58,271 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:58,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58 WrapperNode [2020-11-28 04:38:58,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:58,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:58,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:58,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:58,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:58,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:58,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:58,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:58,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:58,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:58,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:58,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:58,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:58,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/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 [2020-11-28 04:38:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:38:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:38:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 04:38:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:58,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:58,991 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:58,991 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:38:58,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:58 BoogieIcfgContainer [2020-11-28 04:38:58,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:58,994 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:58,994 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:59,004 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:59,004 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:58" (1/1) ... [2020-11-28 04:38:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:59,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 04:38:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 04:38:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:59,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:59,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-28 04:38:59,329 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-28 04:38:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:59,329 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 04:38:59,449 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 04:38:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:38:59,450 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:59,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 04:38:59,972 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 04:38:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:59,972 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-28 04:39:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-28 04:39:00,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:39:00,547 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:01,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-11-28 04:39:01,498 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-11-28 04:39:01,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:39:01,499 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:01,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 04:39:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 04:39:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:02,894 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:03,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:04,030 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-11-28 04:39:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:04,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 04:39:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 04:39:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:39:04,882 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:08,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-28 04:39:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-28 04:39:08,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:08,033 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-28 04:39:08,039 INFO L765 CodeCheckObserver]: All specifications hold 7 specifications checked. All of them hold [2020-11-28 04:39:08,143 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:39:08,146 INFO L569 CodeCheckObserver]: Invariant with dag size 25 [2020-11-28 04:39:08,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:08 ImpRootNode [2020-11-28 04:39:08,152 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:08,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:08,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:08,153 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:08,153 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:58" (3/4) ... [2020-11-28 04:39:08,156 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:08,190 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:39:08,190 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:39:08,190 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:39:08,221 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((p == 0 && p + 1 <= unknown-#StackHeapBarrier-unknown) && (p == 0 || (\valid[p := 0] == \old(unknown-main_\old_#valid-unknown) && \valid[0] == 0))) && (\old(unknown-main_\old_#valid-unknown) == \valid || !(p == 0))) && (\valid[p] == 1 || p == 0)) && 1 <= unknown-#StackHeapBarrier-unknown [2020-11-28 04:39:08,258 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_18df9110-d9da-40d5-9a9d-7dd086d4c2e7/bin/ukojak/witness.graphml [2020-11-28 04:39:08,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:08,259 INFO L168 Benchmark]: Toolchain (without parser) took 10728.52 ms. Allocated memory was 125.8 MB in the beginning and 226.5 MB in the end (delta: 100.7 MB). Free memory was 90.6 MB in the beginning and 158.6 MB in the end (delta: -68.0 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:08,260 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:08,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.09 ms. Allocated memory is still 125.8 MB. Free memory was 90.3 MB in the beginning and 77.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:08,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.75 ms. Allocated memory is still 125.8 MB. Free memory was 77.6 MB in the beginning and 75.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:08,262 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 125.8 MB. Free memory was 75.4 MB in the beginning and 74.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:08,262 INFO L168 Benchmark]: RCFGBuilder took 628.44 ms. Allocated memory is still 125.8 MB. Free memory was 74.1 MB in the beginning and 49.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:08,263 INFO L168 Benchmark]: CodeCheck took 9158.33 ms. Allocated memory was 125.8 MB in the beginning and 226.5 MB in the end (delta: 100.7 MB). Free memory was 49.7 MB in the beginning and 161.7 MB in the end (delta: -112.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:08,263 INFO L168 Benchmark]: Witness Printer took 105.13 ms. Allocated memory is still 226.5 MB. Free memory was 160.7 MB in the beginning and 158.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:08,266 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, 17 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 552 SDslu, 0 SDs, 0 SdLazy, 4132 SolverSat, 1680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 368 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8377 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 2400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 765]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 761]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 762]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 759]: Loop Invariant [2020-11-28 04:39:08,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:39:08,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:39:08,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((p == 0 && p + 1 <= unknown-#StackHeapBarrier-unknown) && (p == 0 || (\valid[p := 0] == \old(unknown-main_\old_#valid-unknown) && \valid[0] == 0))) && (\old(unknown-main_\old_#valid-unknown) == \valid || !(p == 0))) && (\valid[p] == 1 || p == 0)) && 1 <= unknown-#StackHeapBarrier-unknown * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory was 33.3 MB in the beginning and 33.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.09 ms. Allocated memory is still 125.8 MB. Free memory was 90.3 MB in the beginning and 77.6 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.75 ms. Allocated memory is still 125.8 MB. Free memory was 77.6 MB in the beginning and 75.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 125.8 MB. Free memory was 75.4 MB in the beginning and 74.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 628.44 ms. Allocated memory is still 125.8 MB. Free memory was 74.1 MB in the beginning and 49.7 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 9158.33 ms. Allocated memory was 125.8 MB in the beginning and 226.5 MB in the end (delta: 100.7 MB). Free memory was 49.7 MB in the beginning and 161.7 MB in the end (delta: -112.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 105.13 ms. Allocated memory is still 226.5 MB. Free memory was 160.7 MB in the beginning and 158.6 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 #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - 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 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 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier RESULT: Ultimate proved your program to be correct! Received shutdown request...