./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --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_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/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 400754ae011c17d3326e3fdd997cfc3a510c1705 .............................................................................................................................................................................................................................................................................................. 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 18:28:14,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:28:14,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:28:14,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:28:14,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:28:14,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:28:14,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:28:14,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:28:14,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:28:14,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:28:14,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:28:14,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:28:14,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:28:14,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:28:14,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:28:14,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:28:14,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:28:14,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:28:14,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:28:14,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:28:14,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:28:14,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:28:14,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:28:14,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:28:14,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:28:14,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:28:14,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:28:14,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:28:14,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:28:14,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:28:14,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:28:14,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:28:14,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:28:14,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:28:14,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:28:14,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:28:14,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:28:14,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:28:14,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:28:14,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:28:14,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:28:14,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:28:14,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:28:14,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:28:14,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:28:14,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:28:14,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:28:14,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:28:14,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:28:14,347 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:28:14,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:28:14,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:28:14,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:28:14,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:28:14,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:28:14,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:28:14,350 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:28:14,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:28:14,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:28:14,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:28:14,351 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:28:14,351 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:28:14,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:28:14,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:28:14,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:28:14,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:28:14,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:28:14,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:28:14,353 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:28:14,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:28:14,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:28:14,355 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_69dd2963-c46c-494e-b898-4ef0d3e296ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 400754ae011c17d3326e3fdd997cfc3a510c1705 [2020-12-01 18:28:14,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:28:14,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:28:14,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:28:14,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:28:14,663 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:28:14,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2020-12-01 18:28:14,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/data/6b613f761/413dfe28f2d54d1aa75f428dcd25b28a/FLAGab9c6952d [2020-12-01 18:28:15,190 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:28:15,191 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2020-12-01 18:28:15,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/data/6b613f761/413dfe28f2d54d1aa75f428dcd25b28a/FLAGab9c6952d [2020-12-01 18:28:15,573 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/data/6b613f761/413dfe28f2d54d1aa75f428dcd25b28a [2020-12-01 18:28:15,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:28:15,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:28:15,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:28:15,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:28:15,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:28:15,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d68978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15, skipping insertion in model container [2020-12-01 18:28:15,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:28:15,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:28:15,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:28:15,779 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:28:15,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:28:15,802 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:28:15,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15 WrapperNode [2020-12-01 18:28:15,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:28:15,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:28:15,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:28:15,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:28:15,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:28:15,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:28:15,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:28:15,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:28:15,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... [2020-12-01 18:28:15,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:28:15,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:28:15,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:28:15,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:28:15,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:28:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/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 18:28:15,924 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-12-01 18:28:15,925 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-12-01 18:28:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:28:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:28:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2020-12-01 18:28:15,925 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2020-12-01 18:28:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:28:15,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:28:15,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:28:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:28:15,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:28:16,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:28:16,161 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 18:28:16,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:16 BoogieIcfgContainer [2020-12-01 18:28:16,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:28:16,165 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:28:16,165 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:28:16,176 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:28:16,177 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:16" (1/1) ... [2020-12-01 18:28:16,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:28:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-12-01 18:28:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 18:28:16,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:28:16,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2020-12-01 18:28:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-12-01 18:28:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:28:16,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:17,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 30 transitions. [2020-12-01 18:28:17,007 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-12-01 18:28:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:28:17,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:17,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:17,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 40 transitions. [2020-12-01 18:28:17,938 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2020-12-01 18:28:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 18:28:17,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:18,236 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 51 transitions. [2020-12-01 18:28:19,196 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-12-01 18:28:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 18:28:19,198 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 38 states and 63 transitions. [2020-12-01 18:28:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2020-12-01 18:28:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 18:28:20,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 43 states and 76 transitions. [2020-12-01 18:28:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2020-12-01 18:28:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-01 18:28:22,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:24,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 48 states and 90 transitions. [2020-12-01 18:28:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2020-12-01 18:28:24,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-01 18:28:24,196 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:24,702 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 53 states and 105 transitions. [2020-12-01 18:28:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 105 transitions. [2020-12-01 18:28:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-01 18:28:26,168 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 58 states and 121 transitions. [2020-12-01 18:28:28,305 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 121 transitions. [2020-12-01 18:28:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 18:28:28,307 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 63 states and 128 transitions. [2020-12-01 18:28:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 128 transitions. [2020-12-01 18:28:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-12-01 18:28:30,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 198 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:28:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:42,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 61 states and 79 transitions. [2020-12-01 18:28:42,111 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2020-12-01 18:28:42,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:28:42,113 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-12-01 18:28:42,119 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:28:42,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:28:42 ImpRootNode [2020-12-01 18:28:42,366 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:28:42,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:28:42,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:28:42,367 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:28:42,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:16" (3/4) ... [2020-12-01 18:28:42,370 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:28:42,375 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2020-12-01 18:28:42,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2020-12-01 18:28:42,380 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 18:28:42,380 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 18:28:42,381 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 18:28:42,381 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 18:28:42,432 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_69dd2963-c46c-494e-b898-4ef0d3e296ab/bin/ukojak/witness.graphml [2020-12-01 18:28:42,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:28:42,433 INFO L168 Benchmark]: Toolchain (without parser) took 26855.39 ms. Allocated memory was 123.7 MB in the beginning and 469.8 MB in the end (delta: 346.0 MB). Free memory was 92.3 MB in the beginning and 392.4 MB in the end (delta: -300.1 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:42,434 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory is still 41.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:28:42,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.19 ms. Allocated memory is still 123.7 MB. Free memory was 92.3 MB in the beginning and 100.3 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:42,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.70 ms. Allocated memory is still 123.7 MB. Free memory was 100.3 MB in the beginning and 98.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:42,436 INFO L168 Benchmark]: Boogie Preprocessor took 18.75 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 98.2 MB in the end (delta: 724.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:28:42,436 INFO L168 Benchmark]: RCFGBuilder took 311.95 ms. Allocated memory is still 123.7 MB. Free memory was 98.2 MB in the beginning and 82.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:42,437 INFO L168 Benchmark]: CodeCheck took 26201.34 ms. Allocated memory was 123.7 MB in the beginning and 469.8 MB in the end (delta: 346.0 MB). Free memory was 82.2 MB in the beginning and 394.5 MB in the end (delta: -312.3 MB). Peak memory consumption was 266.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:42,438 INFO L168 Benchmark]: Witness Printer took 65.39 ms. Allocated memory is still 469.8 MB. Free memory was 394.5 MB in the beginning and 392.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:28:42,441 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, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.9s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17408 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 84430 SolverSat, 33422 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4014 GetRequests, 3498 SyntacticMatches, 216 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42357 ImplicationChecksByTransitivity, 23.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 84095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 198/935 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory is still 41.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.19 ms. Allocated memory is still 123.7 MB. Free memory was 92.3 MB in the beginning and 100.3 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.70 ms. Allocated memory is still 123.7 MB. Free memory was 100.3 MB in the beginning and 98.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.75 ms. Allocated memory is still 123.7 MB. Free memory was 98.9 MB in the beginning and 98.2 MB in the end (delta: 724.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 311.95 ms. Allocated memory is still 123.7 MB. Free memory was 98.2 MB in the beginning and 82.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 26201.34 ms. Allocated memory was 123.7 MB in the beginning and 469.8 MB in the end (delta: 346.0 MB). Free memory was 82.2 MB in the beginning and 394.5 MB in the end (delta: -312.3 MB). Peak memory consumption was 266.2 MB. Max. memory is 16.1 GB. * Witness Printer took 65.39 ms. Allocated memory is still 469.8 MB. Free memory was 394.5 MB in the beginning and 392.4 MB in the end (delta: 2.1 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...