./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.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_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/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 1643f1caf494dad598b4df826effeedd3e612fb8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:27:07,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:27:07,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:27:07,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:27:07,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:27:07,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:27:07,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:27:07,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:27:07,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:27:07,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:27:07,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:27:07,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:27:07,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:27:07,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:27:07,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:27:07,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:27:07,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:27:07,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:27:07,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:27:07,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:27:07,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:27:07,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:27:07,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:27:07,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:27:07,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:27:07,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:27:07,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:27:07,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:27:07,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:27:07,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:27:07,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:27:07,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:27:07,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:27:07,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:27:07,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:27:07,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:27:07,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:27:07,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:27:07,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:27:07,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:27:07,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:27:07,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-29 19:27:07,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:27:07,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:27:07,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:27:07,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:27:07,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:27:07,458 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:27:07,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:27:07,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:27:07,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:27:07,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:27:07,459 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 19:27:07,459 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 19:27:07,460 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 19:27:07,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:27:07,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:27:07,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:27:07,461 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:27:07,461 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:27:07,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:27:07,461 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:27:07,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:27:07,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:27:07,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:27:07,462 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:27:07,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:27:07,463 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_39bd9abf-fed9-467d-bee9-09e6a93f1499/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1643f1caf494dad598b4df826effeedd3e612fb8 [2020-11-29 19:27:07,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:27:07,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:27:07,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:27:07,805 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:27:07,806 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:27:07,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2020-11-29 19:27:07,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/data/e57b0ea25/e29ada4eb1d042649e56ea50e6b0b6c5/FLAG185d3e5ab [2020-11-29 19:27:08,402 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:27:08,407 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2020-11-29 19:27:08,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/data/e57b0ea25/e29ada4eb1d042649e56ea50e6b0b6c5/FLAG185d3e5ab [2020-11-29 19:27:08,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/data/e57b0ea25/e29ada4eb1d042649e56ea50e6b0b6c5 [2020-11-29 19:27:08,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:27:08,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:27:08,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:27:08,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:27:08,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:27:08,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:27:08" (1/1) ... [2020-11-29 19:27:08,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2702976e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:08, skipping insertion in model container [2020-11-29 19:27:08,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:27:08" (1/1) ... [2020-11-29 19:27:08,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:27:08,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:27:09,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:27:09,282 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:27:09,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:27:09,405 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:27:09,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09 WrapperNode [2020-11-29 19:27:09,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:27:09,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:27:09,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:27:09,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:27:09,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:27:09,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:27:09,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:27:09,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:27:09,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... [2020-11-29 19:27:09,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:27:09,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:27:09,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:27:09,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:27:09,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:27:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/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 [2020-11-29 19:27:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:27:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:27:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:27:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:27:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:27:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:27:10,070 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:27:10,070 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:27:10,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:27:10 BoogieIcfgContainer [2020-11-29 19:27:10,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:27:10,073 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:27:10,074 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:27:10,082 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:27:10,082 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:27:10" (1/1) ... [2020-11-29 19:27:10,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:27:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-29 19:27:10,125 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-29 19:27:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 19:27:10,128 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-11-29 19:27:10,313 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-29 19:27:10,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 19:27:10,314 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-29 19:27:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-29 19:27:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:27:10,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-29 19:27:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-29 19:27:11,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:27:11,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2020-11-29 19:27:11,318 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2020-11-29 19:27:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:27:11,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2020-11-29 19:27:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2020-11-29 19:27:11,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:27:11,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2020-11-29 19:27:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2020-11-29 19:27:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:27:12,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:27:13,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:13,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 21 states and 38 transitions. [2020-11-29 19:27:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 38 transitions. [2020-11-29 19:27:13,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:27:13,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:13,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:13,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:13,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 21 states and 37 transitions. [2020-11-29 19:27:13,962 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 37 transitions. [2020-11-29 19:27:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:27:13,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 39 transitions. [2020-11-29 19:27:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 39 transitions. [2020-11-29 19:27:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:27:14,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:14,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2020-11-29 19:27:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2020-11-29 19:27:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:27:14,888 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:27:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-29 19:27:15,180 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-29 19:27:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:27:15,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:27:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 23 states and 43 transitions. [2020-11-29 19:27:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 43 transitions. [2020-11-29 19:27:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:27:17,045 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:17,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:19,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 27 states and 52 transitions. [2020-11-29 19:27:19,153 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 52 transitions. [2020-11-29 19:27:19,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:27:19,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:27:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 28 states and 53 transitions. [2020-11-29 19:27:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 53 transitions. [2020-11-29 19:27:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:27:19,510 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 19:27:19,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 29 states and 54 transitions. [2020-11-29 19:27:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 54 transitions. [2020-11-29 19:27:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:27:19,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 32 states and 68 transitions. [2020-11-29 19:27:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 68 transitions. [2020-11-29 19:27:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:27:23,076 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:23,156 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 33 states and 71 transitions. [2020-11-29 19:27:24,372 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 71 transitions. [2020-11-29 19:27:24,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:27:24,373 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 35 states and 75 transitions. [2020-11-29 19:27:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 75 transitions. [2020-11-29 19:27:26,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:27:26,205 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:26,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:29,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:29,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 39 states and 85 transitions. [2020-11-29 19:27:29,142 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 85 transitions. [2020-11-29 19:27:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:27:29,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 19:27:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:29,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 40 states and 85 transitions. [2020-11-29 19:27:29,829 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 85 transitions. [2020-11-29 19:27:29,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:27:29,830 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:32,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 41 states and 84 transitions. [2020-11-29 19:27:32,013 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 84 transitions. [2020-11-29 19:27:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:27:32,013 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 44 states and 91 transitions. [2020-11-29 19:27:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 91 transitions. [2020-11-29 19:27:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:27:33,943 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 19:27:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 45 states and 93 transitions. [2020-11-29 19:27:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 93 transitions. [2020-11-29 19:27:36,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:27:36,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 19:27:37,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:37,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 49 transitions. [2020-11-29 19:27:37,361 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-29 19:27:37,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:27:37,361 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:38,162 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:27:40,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2020-11-29 19:27:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2020-11-29 19:27:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:27:40,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:27:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:27:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-29 19:27:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:27:40,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-29 19:27:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-29 19:27:40,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:27:40,902 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2020-11-29 19:27:40,909 INFO L765 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2020-11-29 19:27:41,035 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-29 19:27:41,301 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2020-11-29 19:27:41,302 INFO L569 CodeCheckObserver]: Invariant with dag size 27 [2020-11-29 19:27:41,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,308 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,314 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-29 19:27:41,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,315 INFO L569 CodeCheckObserver]: Invariant with dag size 37 [2020-11-29 19:27:41,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:27:41 ImpRootNode [2020-11-29 19:27:41,322 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:27:41,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:27:41,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:27:41,323 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:27:41,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:27:10" (3/4) ... [2020-11-29 19:27:41,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:27:41,334 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-29 19:27:41,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 19:27:41,335 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 19:27:41,359 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= i && \valid[numbers] == 1) && 1 <= array_size) && i <= 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) || (((((\valid[numbers] == 1 && 1 <= array_size) && i == 0) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && 4 * array_size == unknown-#length-unknown[numbers]) && numbers == 0)) || (((((2 < i && \valid[numbers] == 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 3 <= array_size) && numbers == 0)) || ((((((1 < i && \valid[numbers] == 1) && i <= 2) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 8 <= unknown-#length-unknown[numbers]) && numbers == 0) [2020-11-29 19:27:41,360 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((array_size < i + 1 && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) || (((numbers + 4 * array_size <= unknown-#length-unknown[numbers] && 0 <= numbers + 4 * i) && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) [2020-11-29 19:27:41,360 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-29 19:27:41,379 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_39bd9abf-fed9-467d-bee9-09e6a93f1499/bin/ukojak/witness.graphml [2020-11-29 19:27:41,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:27:41,381 INFO L168 Benchmark]: Toolchain (without parser) took 32472.35 ms. Allocated memory was 79.7 MB in the beginning and 293.6 MB in the end (delta: 213.9 MB). Free memory was 57.9 MB in the beginning and 127.8 MB in the end (delta: -69.9 MB). Peak memory consumption was 144.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:41,382 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 58.6 MB in the beginning and 58.5 MB in the end (delta: 75.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:27:41,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.27 ms. Allocated memory is still 79.7 MB. Free memory was 57.8 MB in the beginning and 45.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:41,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.81 ms. Allocated memory is still 79.7 MB. Free memory was 45.6 MB in the beginning and 43.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:41,383 INFO L168 Benchmark]: Boogie Preprocessor took 44.22 ms. Allocated memory is still 79.7 MB. Free memory was 43.7 MB in the beginning and 42.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:27:41,384 INFO L168 Benchmark]: RCFGBuilder took 559.54 ms. Allocated memory was 79.7 MB in the beginning and 115.3 MB in the end (delta: 35.7 MB). Free memory was 42.6 MB in the beginning and 84.7 MB in the end (delta: -42.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:41,385 INFO L168 Benchmark]: CodeCheck took 31248.60 ms. Allocated memory was 115.3 MB in the beginning and 293.6 MB in the end (delta: 178.3 MB). Free memory was 83.9 MB in the beginning and 129.9 MB in the end (delta: -46.0 MB). Peak memory consumption was 132.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:41,385 INFO L168 Benchmark]: Witness Printer took 57.19 ms. Allocated memory is still 293.6 MB. Free memory was 129.9 MB in the beginning and 127.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:27:41,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.8s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 75497472 SDtfs, 112795808 SDslu, 67108864 SDs, 0 SdLazy, 1095689056 SolverSat, 411842056 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2522 GetRequests, 2162 SyntacticMatches, 100 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29815 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 13882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 11 PerfectInterpolantSequences, 74/152 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: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 517]: Loop Invariant [2020-11-29 19:27:41,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((array_size < i + 1 && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) || (((numbers + 4 * array_size <= unknown-#length-unknown[numbers] && 0 <= numbers + 4 * i) && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) - InvariantResult [Line: 524]: Loop Invariant [2020-11-29 19:27:41,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 531]: Loop Invariant [2020-11-29 19:27:41,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-29 19:27:41,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 19:27:41,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((((1 <= i && \valid[numbers] == 1) && 1 <= array_size) && i <= 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) || (((((\valid[numbers] == 1 && 1 <= array_size) && i == 0) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && 4 * array_size == unknown-#length-unknown[numbers]) && numbers == 0)) || (((((2 < i && \valid[numbers] == 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 3 <= array_size) && numbers == 0)) || ((((((1 < i && \valid[numbers] == 1) && i <= 2) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 8 <= unknown-#length-unknown[numbers]) && numbers == 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 79.7 MB. Free memory was 58.6 MB in the beginning and 58.5 MB in the end (delta: 75.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.27 ms. Allocated memory is still 79.7 MB. Free memory was 57.8 MB in the beginning and 45.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.81 ms. Allocated memory is still 79.7 MB. Free memory was 45.6 MB in the beginning and 43.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.22 ms. Allocated memory is still 79.7 MB. Free memory was 43.7 MB in the beginning and 42.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 559.54 ms. Allocated memory was 79.7 MB in the beginning and 115.3 MB in the end (delta: 35.7 MB). Free memory was 42.6 MB in the beginning and 84.7 MB in the end (delta: -42.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * CodeCheck took 31248.60 ms. Allocated memory was 115.3 MB in the beginning and 293.6 MB in the end (delta: 178.3 MB). Free memory was 83.9 MB in the beginning and 129.9 MB in the end (delta: -46.0 MB). Peak memory consumption was 132.0 MB. Max. memory is 16.1 GB. * Witness Printer took 57.19 ms. Allocated memory is still 293.6 MB. Free memory was 129.9 MB in the beginning and 127.8 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 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 #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 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #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 #length - 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 #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 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...