./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e96ea2b5694d083c4ab21538f2478ac793ab7d6e ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:41:15,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:41:15,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:41:15,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:41:15,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:41:15,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:41:15,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:41:15,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:41:15,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:41:15,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:41:15,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:41:15,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:41:15,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:41:15,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:41:15,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:41:15,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:41:15,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:41:15,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:41:15,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:41:15,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:41:15,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:41:15,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:41:15,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:41:15,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:41:15,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:41:15,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:41:15,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:41:15,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:41:15,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:41:15,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:41:15,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:41:15,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:41:15,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:41:15,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:41:15,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:41:15,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:41:15,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:41:15,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:41:15,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:41:15,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:41:15,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:41:15,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-26 02:41:15,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:41:15,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:41:15,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:41:15,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:41:15,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:41:15,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:41:15,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:41:15,414 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:41:15,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:41:15,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:41:15,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:41:15,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:41:15,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:41:15,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:41:15,416 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:41:15,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:41:15,416 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:41:15,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:41:15,417 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:41:15,417 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:41:15,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:41:15,418 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:41:15,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:41:15,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:41:15,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:41:15,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:41:15,420 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:41:15,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:41:15,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:41:15,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_17f38e06-7aec-4f17-b6c8-b34890a9db4f/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(__VERIFIER_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 -> e96ea2b5694d083c4ab21538f2478ac793ab7d6e [2019-11-26 02:41:15,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:41:15,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:41:15,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:41:15,575 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:41:15,576 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:41:15,576 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test21-1.c [2019-11-26 02:41:15,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/data/a793f6046/80ad764e8c0e4f02a3dd04661e95deeb/FLAGdd08e4182 [2019-11-26 02:41:16,061 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:41:16,061 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/sv-benchmarks/c/ldv-regression/test21-1.c [2019-11-26 02:41:16,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/data/a793f6046/80ad764e8c0e4f02a3dd04661e95deeb/FLAGdd08e4182 [2019-11-26 02:41:16,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/data/a793f6046/80ad764e8c0e4f02a3dd04661e95deeb [2019-11-26 02:41:16,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:41:16,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:41:16,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:41:16,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:41:16,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:41:16,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6400364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16, skipping insertion in model container [2019-11-26 02:41:16,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:41:16,454 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:41:16,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:41:16,712 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:41:16,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:41:16,740 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:41:16,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16 WrapperNode [2019-11-26 02:41:16,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:41:16,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:41:16,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:41:16,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:41:16,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:41:16,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:41:16,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:41:16,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:41:16,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... [2019-11-26 02:41:16,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:41:16,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:41:16,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:41:16,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:41:16,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:41:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/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 [2019-11-26 02:41:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:41:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:41:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:41:16,855 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-11-26 02:41:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-11-26 02:41:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:41:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:41:16,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:41:17,188 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:41:17,189 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-26 02:41:17,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:17 BoogieIcfgContainer [2019-11-26 02:41:17,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:41:17,191 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:41:17,191 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:41:17,199 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:41:17,199 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:17" (1/1) ... [2019-11-26 02:41:17,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:41:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:41:17,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-11-26 02:41:17,238 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-26 02:41:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-26 02:41:17,243 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:41:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:41:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:41:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:41:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-11-26 02:41:17,440 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-26 02:41:17,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:41:17,440 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2019-11-26 02:41:17,448 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-26 02:41:17,466 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:41:17,470 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-26 02:41:17,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:41:17 ImpRootNode [2019-11-26 02:41:17,471 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:41:17,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:41:17,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:41:17,471 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:41:17,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:41:17" (3/4) ... [2019-11-26 02:41:17,475 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:41:17,480 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2019-11-26 02:41:17,485 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-26 02:41:17,485 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:41:17,485 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:41:17,529 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17f38e06-7aec-4f17-b6c8-b34890a9db4f/bin/ukojak/witness.graphml [2019-11-26 02:41:17,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:41:17,531 INFO L168 Benchmark]: Toolchain (without parser) took 1106.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -129.4 MB). Peak memory consumption was 602.7 kB. Max. memory is 11.5 GB. [2019-11-26 02:41:17,532 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:41:17,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:17,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:41:17,533 INFO L168 Benchmark]: Boogie Preprocessor took 19.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:41:17,533 INFO L168 Benchmark]: RCFGBuilder took 392.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:17,534 INFO L168 Benchmark]: CodeCheck took 280.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:17,534 INFO L168 Benchmark]: Witness Printer took 58.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:41:17,537 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 42]: 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: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 392.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * CodeCheck took 280.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 58.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...