./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/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 ff4896216eefafba5d449d78f4101ef1a668ac4e .......................................................................................................................................................................................................................... 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 04:36:11,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:36:11,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:36:11,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:36:11,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:36:11,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:36:11,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:36:11,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:36:11,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:36:11,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:36:11,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:36:11,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:36:11,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:36:11,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:36:11,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:36:11,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:36:11,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:36:11,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:36:11,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:36:11,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:36:11,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:36:11,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:36:11,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:36:11,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:36:11,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:36:11,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:36:11,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:36:11,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:36:11,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:36:11,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:36:11,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:36:11,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:36:11,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:36:11,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:36:11,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:36:11,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:36:11,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:36:11,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:36:11,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:36:11,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:36:11,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:36:11,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:36:11,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:36:11,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:36:11,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:36:11,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:36:11,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:36:11,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:36:11,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:36:11,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:36:11,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:36:11,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:36:11,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:36:11,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:36:11,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:36:11,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:36:11,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:36:11,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:36:11,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:36:11,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:36:11,443 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:36:11,443 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:36:11,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:36:11,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:36:11,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:36:11,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:36:11,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:36:11,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:36:11,445 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:36:11,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:36:11,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:36:11,445 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_b2256d7a-597d-4b26-890c-43cb65f2fbc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff4896216eefafba5d449d78f4101ef1a668ac4e [2020-11-28 04:36:11,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:36:11,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:36:11,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:36:11,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:36:11,807 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:36:11,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test21-1.c [2020-11-28 04:36:11,879 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/data/58dd27ffc/32ea3c069d624afc8e08e6a2bba7c130/FLAG661fdc253 [2020-11-28 04:36:12,357 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:36:12,357 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/sv-benchmarks/c/ldv-regression/test21-1.c [2020-11-28 04:36:12,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/data/58dd27ffc/32ea3c069d624afc8e08e6a2bba7c130/FLAG661fdc253 [2020-11-28 04:36:12,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/data/58dd27ffc/32ea3c069d624afc8e08e6a2bba7c130 [2020-11-28 04:36:12,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:36:12,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:36:12,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:12,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:36:12,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:36:12,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:12,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68542d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12, skipping insertion in model container [2020-11-28 04:36:12,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:12,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:36:12,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:36:13,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:13,029 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:36:13,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:13,075 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:36:13,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13 WrapperNode [2020-11-28 04:36:13,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:13,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:13,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:36:13,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:36:13,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:13,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:36:13,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:36:13,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:36:13,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:36:13,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:36:13,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:36:13,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:36:13,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/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 04:36:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:36:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:36:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:36:13,288 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-11-28 04:36:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-11-28 04:36:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:36:13,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:36:13,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:36:13,729 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:36:13,729 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:36:13,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:13 BoogieIcfgContainer [2020-11-28 04:36:13,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:36:13,733 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:36:13,733 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:36:13,750 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:36:13,751 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:36:13,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:13,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:36:13,797 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:36:13,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:13,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:14,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:36:14,071 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:36:14,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:36:14,071 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:36:14,077 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:36:14,122 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:36:14,127 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:36:14,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:36:14 ImpRootNode [2020-11-28 04:36:14,127 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:36:14,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:36:14,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:36:14,131 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:36:14,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:13" (3/4) ... [2020-11-28 04:36:14,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:36:14,150 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2020-11-28 04:36:14,157 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 04:36:14,157 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:36:14,157 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:36:14,157 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:36:14,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2256d7a-597d-4b26-890c-43cb65f2fbc0/bin/ukojak/witness.graphml [2020-11-28 04:36:14,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:36:14,215 INFO L168 Benchmark]: Toolchain (without parser) took 1456.67 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 87.7 MB in the beginning and 120.4 MB in the end (delta: -32.7 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:14,216 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:14,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.41 ms. Allocated memory is still 117.4 MB. Free memory was 87.7 MB in the beginning and 92.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:14,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:14,219 INFO L168 Benchmark]: Boogie Preprocessor took 56.09 ms. Allocated memory is still 117.4 MB. Free memory was 91.5 MB in the beginning and 90.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:14,220 INFO L168 Benchmark]: RCFGBuilder took 534.86 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 70.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:14,220 INFO L168 Benchmark]: CodeCheck took 394.82 ms. Allocated memory is still 117.4 MB. Free memory was 70.4 MB in the beginning and 54.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:14,221 INFO L168 Benchmark]: Witness Printer took 82.41 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 54.5 MB in the beginning and 120.4 MB in the end (delta: -66.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:14,225 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 2 procedures, 14 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: 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: 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 316.41 ms. Allocated memory is still 117.4 MB. Free memory was 87.7 MB in the beginning and 92.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.09 ms. Allocated memory is still 117.4 MB. Free memory was 91.5 MB in the beginning and 90.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 534.86 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 70.4 MB in the end (delta: 19.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 394.82 ms. Allocated memory is still 117.4 MB. Free memory was 70.4 MB in the beginning and 54.7 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 82.41 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 54.5 MB in the beginning and 120.4 MB in the end (delta: -66.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...