./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list.i -s /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42d0efa4152259a598ae991dec084e493c366d6a .......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:28:44,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:28:44,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:28:44,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:28:44,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:28:44,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:28:44,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:28:44,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:28:44,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:28:44,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:28:44,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:28:44,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:28:44,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:28:44,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:28:44,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:28:44,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:28:44,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:28:44,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:28:44,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:28:44,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:28:44,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:28:44,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:28:44,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:28:44,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:28:44,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:28:44,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:28:44,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:28:44,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:28:44,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:28:44,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:28:44,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:28:44,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:28:44,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:28:44,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:28:44,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:28:44,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:28:44,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:28:44,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:28:44,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:28:44,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:28:44,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:28:44,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:28:44,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:28:44,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:28:44,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:28:44,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:28:44,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:28:44,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:28:44,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:28:44,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:28:44,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:28:44,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:28:44,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:28:44,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:28:44,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:28:44,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:28:44,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:28:44,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:28:44,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:28:44,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:28:44,409 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:28:44,409 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:28:44,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:28:44,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:28:44,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:28:44,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:28:44,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:28:44,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:28:44,411 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:28:44,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:28:44,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:28:44,411 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_485a3cde-aa77-4ad7-a783-8a179a9a5c77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d0efa4152259a598ae991dec084e493c366d6a [2020-12-01 18:28:44,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:28:44,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:28:44,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:28:44,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:28:44,764 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:28:44,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/../../sv-benchmarks/c/ldv-regression/rule60_list.i [2020-12-01 18:28:44,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/data/ce8292a58/12b51f0e251445809dc327f3c0830f47/FLAG97307e0fc [2020-12-01 18:28:45,493 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:28:45,493 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/sv-benchmarks/c/ldv-regression/rule60_list.i [2020-12-01 18:28:45,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/data/ce8292a58/12b51f0e251445809dc327f3c0830f47/FLAG97307e0fc [2020-12-01 18:28:45,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/data/ce8292a58/12b51f0e251445809dc327f3c0830f47 [2020-12-01 18:28:45,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:28:45,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:28:45,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:28:45,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:28:45,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:28:45,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:28:45" (1/1) ... [2020-12-01 18:28:45,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1401d295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:45, skipping insertion in model container [2020-12-01 18:28:45,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:28:45" (1/1) ... [2020-12-01 18:28:45,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:28:45,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:28:46,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:28:46,223 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:28:46,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:28:46,359 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:28:46,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46 WrapperNode [2020-12-01 18:28:46,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:28:46,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:28:46,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:28:46,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:28:46,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:28:46,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:28:46,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:28:46,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:28:46,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... [2020-12-01 18:28:46,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:28:46,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:28:46,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:28:46,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:28:46,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:28:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:28:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:28:46,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:28:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:28:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-12-01 18:28:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-12-01 18:28:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-01 18:28:46,559 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-12-01 18:28:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-12-01 18:28:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:28:46,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:28:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:28:47,084 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:28:47,084 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-01 18:28:47,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:47 BoogieIcfgContainer [2020-12-01 18:28:47,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:28:47,088 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:28:47,088 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:28:47,108 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:28:47,108 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:47" (1/1) ... [2020-12-01 18:28:47,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:28:47,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:47,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-12-01 18:28:47,174 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-12-01 18:28:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:28:47,178 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 22 transitions. [2020-12-01 18:28:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-01 18:28:47,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:28:47,710 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:47,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:48,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 20 transitions. [2020-12-01 18:28:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-12-01 18:28:48,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:28:48,410 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:48,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:49,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 13 states and 14 transitions. [2020-12-01 18:28:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-12-01 18:28:49,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:28:49,062 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-12-01 18:28:49,072 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:28:49,162 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:28:49,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:28:49 ImpRootNode [2020-12-01 18:28:49,167 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:28:49,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:28:49,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:28:49,169 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:28:49,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:47" (3/4) ... [2020-12-01 18:28:49,174 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:28:49,190 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2020-12-01 18:28:49,191 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2020-12-01 18:28:49,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 18:28:49,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 18:28:49,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:28:49,201 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:28:49,242 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_485a3cde-aa77-4ad7-a783-8a179a9a5c77/bin/ukojak/witness.graphml [2020-12-01 18:28:49,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:28:49,244 INFO L168 Benchmark]: Toolchain (without parser) took 3491.89 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.4 MB in the beginning and 61.6 MB in the end (delta: -2.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:49,245 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 68.6 MB in the beginning and 68.6 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:28:49,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.31 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 59.3 MB in the end (delta: -170.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:49,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.78 ms. Allocated memory is still 94.4 MB. Free memory was 59.3 MB in the beginning and 57.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:49,247 INFO L168 Benchmark]: Boogie Preprocessor took 42.38 ms. Allocated memory is still 94.4 MB. Free memory was 57.3 MB in the beginning and 56.4 MB in the end (delta: 877.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:28:49,247 INFO L168 Benchmark]: RCFGBuilder took 612.46 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 36.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:49,248 INFO L168 Benchmark]: CodeCheck took 2080.12 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 36.8 MB in the beginning and 63.6 MB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:28:49,249 INFO L168 Benchmark]: Witness Printer took 73.46 ms. Allocated memory is still 113.2 MB. Free memory was 63.6 MB in the beginning and 61.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:49,252 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 18 SDslu, 12 SDs, 0 SdLazy, 240 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2394 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 68.6 MB in the beginning and 68.6 MB in the end (delta: 23.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 609.31 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 59.3 MB in the end (delta: -170.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.78 ms. Allocated memory is still 94.4 MB. Free memory was 59.3 MB in the beginning and 57.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.38 ms. Allocated memory is still 94.4 MB. Free memory was 57.3 MB in the beginning and 56.4 MB in the end (delta: 877.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 612.46 ms. Allocated memory is still 94.4 MB. Free memory was 56.0 MB in the beginning and 36.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 2080.12 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 36.8 MB in the beginning and 63.6 MB in the end (delta: -26.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 73.46 ms. Allocated memory is still 113.2 MB. Free memory was 63.6 MB in the beginning and 61.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...