./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.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_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/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 1693662d9872ce45cd117d61c82cdfc52e871ea9 ........................................................................................................................................................................................................................ 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 16:24:32,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:24:32,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:24:32,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:24:32,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:24:32,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:24:32,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:24:32,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:24:32,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:24:32,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:24:32,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:24:32,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:24:32,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:24:32,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:24:32,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:24:32,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:24:32,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:24:32,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:24:32,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:24:32,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:24:32,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:24:32,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:24:32,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:24:32,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:24:32,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:24:32,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:24:32,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:24:32,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:24:32,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:24:32,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:24:32,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:24:32,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:24:32,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:24:32,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:24:32,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:24:32,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:24:32,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:24:32,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:24:32,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:24:32,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:24:32,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:24:32,549 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:24:32,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:24:32,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:24:32,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:24:32,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:24:32,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:24:32,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:24:32,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:24:32,599 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:24:32,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:24:32,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:24:32,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:24:32,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:24:32,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:24:32,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:24:32,601 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:24:32,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:24:32,602 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:24:32,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:24:32,602 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:24:32,602 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:24:32,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:24:32,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:24:32,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:24:32,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:24:32,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:24:32,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:24:32,604 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:24:32,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:24:32,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:24:32,605 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_6161a072-ab8d-49c7-9d06-f386249c67ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1693662d9872ce45cd117d61c82cdfc52e871ea9 [2020-12-01 16:24:32,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:24:32,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:24:32,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:24:32,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:24:32,969 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:24:32,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2020-12-01 16:24:33,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/data/42304b453/90733589e9034fb683ddabf2c4ed07af/FLAG8996182ae [2020-12-01 16:24:33,532 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:24:33,533 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2020-12-01 16:24:33,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/data/42304b453/90733589e9034fb683ddabf2c4ed07af/FLAG8996182ae [2020-12-01 16:24:33,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/data/42304b453/90733589e9034fb683ddabf2c4ed07af [2020-12-01 16:24:33,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:24:33,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:24:33,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:24:33,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:24:33,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:24:33,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:24:33" (1/1) ... [2020-12-01 16:24:33,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfccdc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:33, skipping insertion in model container [2020-12-01 16:24:33,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:24:33" (1/1) ... [2020-12-01 16:24:33,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:24:33,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:24:34,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:24:34,127 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:24:34,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:24:34,154 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:24:34,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34 WrapperNode [2020-12-01 16:24:34,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:24:34,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:24:34,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:24:34,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:24:34,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:24:34,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:24:34,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:24:34,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:24:34,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:24:34,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:24:34,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:24:34,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:24:34,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:24:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/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 16:24:34,281 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-12-01 16:24:34,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-12-01 16:24:34,282 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-12-01 16:24:34,283 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-12-01 16:24:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:24:34,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:24:34,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:24:34,284 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2020-12-01 16:24:34,284 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2020-12-01 16:24:34,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:24:34,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:24:34,548 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-01 16:24:34,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:24:34 BoogieIcfgContainer [2020-12-01 16:24:34,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:24:34,551 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:24:34,552 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:24:34,563 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:24:34,564 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:24:34" (1/1) ... [2020-12-01 16:24:34,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:24:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:24:34,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2020-12-01 16:24:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-12-01 16:24:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:24:34,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:24:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:24:34,880 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 16:24:34,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:24:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 8 states and 7 transitions. [2020-12-01 16:24:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-01 16:24:34,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:24:34,933 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-12-01 16:24:34,939 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:24:34,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:24:34 ImpRootNode [2020-12-01 16:24:34,956 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:24:34,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:24:34,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:24:34,958 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:24:34,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:24:34" (3/4) ... [2020-12-01 16:24:34,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:24:34,972 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2020-12-01 16:24:34,973 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2020-12-01 16:24:34,973 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2020-12-01 16:24:34,982 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-01 16:24:34,982 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 16:24:34,982 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:24:34,983 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:24:35,042 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6161a072-ab8d-49c7-9d06-f386249c67ff/bin/ukojak/witness.graphml [2020-12-01 16:24:35,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:24:35,044 INFO L168 Benchmark]: Toolchain (without parser) took 1134.43 ms. Allocated memory is still 123.7 MB. Free memory was 95.7 MB in the beginning and 67.6 MB in the end (delta: 28.2 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:24:35,045 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:24:35,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.04 ms. Allocated memory is still 123.7 MB. Free memory was 95.4 MB in the beginning and 101.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:24:35,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.60 ms. Allocated memory is still 123.7 MB. Free memory was 101.5 MB in the beginning and 100.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:24:35,047 INFO L168 Benchmark]: Boogie Preprocessor took 17.95 ms. Allocated memory is still 123.7 MB. Free memory was 100.3 MB in the beginning and 99.4 MB in the end (delta: 933.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:24:35,048 INFO L168 Benchmark]: RCFGBuilder took 346.38 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 86.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:24:35,049 INFO L168 Benchmark]: CodeCheck took 405.02 ms. Allocated memory is still 123.7 MB. Free memory was 86.4 MB in the beginning and 70.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:24:35,050 INFO L168 Benchmark]: Witness Printer took 85.29 ms. Allocated memory is still 123.7 MB. Free memory was 70.1 MB in the beginning and 67.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:24:35,054 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 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 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 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.04 ms. Allocated memory is still 123.7 MB. Free memory was 95.4 MB in the beginning and 101.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.60 ms. Allocated memory is still 123.7 MB. Free memory was 101.5 MB in the beginning and 100.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.95 ms. Allocated memory is still 123.7 MB. Free memory was 100.3 MB in the beginning and 99.4 MB in the end (delta: 933.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 346.38 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 86.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 405.02 ms. Allocated memory is still 123.7 MB. Free memory was 86.4 MB in the beginning and 70.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 85.29 ms. Allocated memory is still 123.7 MB. Free memory was 70.1 MB in the beginning and 67.6 MB in the end (delta: 2.5 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...