./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test18.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/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 16db0a07d0ab5b1a2f89ccdbefb8e737b4b0ad11 ....................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:44:15,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:15,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:15,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:15,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:15,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:15,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:15,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:15,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:15,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:15,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:15,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:15,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:15,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:15,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:15,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:15,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:15,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:15,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:15,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:15,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:15,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:15,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:15,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:15,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:15,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:15,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:15,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:15,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:15,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:15,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:15,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:15,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:15,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:15,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:15,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:15,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:15,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:15,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:15,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:15,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:15,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:44:15,283 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:15,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:15,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:15,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:15,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:15,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:15,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:15,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:44:15,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:15,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:44:15,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:15,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:15,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:15,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:15,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:44:15,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:15,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:15,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:15,290 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:15,290 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:15,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:15,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:15,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:15,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:15,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:15,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:15,292 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:15,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:15,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:15,294 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_1d95ea42-d8fa-44c0-9110-a14b66584cdb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16db0a07d0ab5b1a2f89ccdbefb8e737b4b0ad11 [2020-11-28 04:44:15,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:15,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:15,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:15,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:15,595 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:15,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test18.c [2020-11-28 04:44:15,683 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/data/7a9356afb/5f217a9cdbc54103b2da98005467ae21/FLAGf946723a3 [2020-11-28 04:44:16,105 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:16,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/sv-benchmarks/c/ldv-regression/test18.c [2020-11-28 04:44:16,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/data/7a9356afb/5f217a9cdbc54103b2da98005467ae21/FLAGf946723a3 [2020-11-28 04:44:16,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/data/7a9356afb/5f217a9cdbc54103b2da98005467ae21 [2020-11-28 04:44:16,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:16,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:16,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:16,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:16,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:16,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127c4dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16, skipping insertion in model container [2020-11-28 04:44:16,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:16,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:16,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:16,718 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:16,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:16,748 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:16,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16 WrapperNode [2020-11-28 04:44:16,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:16,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:16,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:16,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:16,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:16,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:16,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:16,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:16,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:16,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:16,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:16,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:16,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:16,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:44:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:44:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:44:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:44:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:44:16,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:44:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:44:17,444 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:17,444 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:44:17,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17 BoogieIcfgContainer [2020-11-28 04:44:17,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:17,447 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:17,447 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:17,458 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:17,458 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17" (1/1) ... [2020-11-28 04:44:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-28 04:44:17,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-28 04:44:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:44:17,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2020-11-28 04:44:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-11-28 04:44:17,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:17,761 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:44:17,767 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:44:17,783 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:17,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:17 ImpRootNode [2020-11-28 04:44:17,786 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:17,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:17,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:17,787 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:17,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17" (3/4) ... [2020-11-28 04:44:17,791 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:17,799 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2020-11-28 04:44:17,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 04:44:17,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:44:17,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:17,860 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1d95ea42-d8fa-44c0-9110-a14b66584cdb/bin/ukojak/witness.graphml [2020-11-28 04:44:17,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:17,865 INFO L168 Benchmark]: Toolchain (without parser) took 1360.67 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.7 MB in the beginning and 54.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:17,865 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory was 57.8 MB in the beginning and 57.7 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:17,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.67 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.5 MB in the beginning and 71.4 MB in the end (delta: -29.9 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:17,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.95 ms. Allocated memory is still 94.4 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:17,867 INFO L168 Benchmark]: Boogie Preprocessor took 21.90 ms. Allocated memory is still 94.4 MB. Free memory was 69.8 MB in the beginning and 68.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:17,870 INFO L168 Benchmark]: RCFGBuilder took 640.42 ms. Allocated memory is still 94.4 MB. Free memory was 68.8 MB in the beginning and 71.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:17,871 INFO L168 Benchmark]: CodeCheck took 339.38 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 56.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:17,872 INFO L168 Benchmark]: Witness Printer took 73.50 ms. Allocated memory is still 94.4 MB. Free memory was 56.7 MB in the beginning and 54.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:17,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 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, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 77.6 MB. Free memory was 57.8 MB in the beginning and 57.7 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.67 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.5 MB in the beginning and 71.4 MB in the end (delta: -29.9 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.95 ms. Allocated memory is still 94.4 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.90 ms. Allocated memory is still 94.4 MB. Free memory was 69.8 MB in the beginning and 68.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 640.42 ms. Allocated memory is still 94.4 MB. Free memory was 68.8 MB in the beginning and 71.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * CodeCheck took 339.38 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 56.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 73.50 ms. Allocated memory is still 94.4 MB. Free memory was 56.7 MB in the beginning and 54.2 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...