./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test10.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_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/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 71501a10523f048daeb674450fd4ef1923432fa1 .......................................................................................................................................................................................................................... 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 04:32:50,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:50,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:50,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:50,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:50,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:50,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:50,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:50,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:50,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:50,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:50,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:50,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:50,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:50,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:50,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:50,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:50,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:50,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:50,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:50,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:50,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:50,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:50,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:50,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:50,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:50,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:50,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:50,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:50,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:50,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:50,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:50,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:50,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:50,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:50,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:50,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:50,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:50,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:50,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:50,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:50,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:32:50,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:50,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:50,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:32:50,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:32:50,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:50,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:50,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:50,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:50,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:50,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:50,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:50,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:32:50,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:50,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:32:50,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:50,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:32:50,922 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:50,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:32:50,923 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:50,923 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:50,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:50,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:50,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:50,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:50,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:50,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:32:50,925 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:50,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:50,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:32:50,928 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_c057dcec-1b52-46e7-a096-488831089e86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71501a10523f048daeb674450fd4ef1923432fa1 [2020-11-28 04:32:51,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:51,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:51,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:51,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:51,310 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:51,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test10.c [2020-11-28 04:32:51,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/data/b708b9a90/69bc76c22a1e4298b6d2452c266c2a52/FLAGec83f963e [2020-11-28 04:32:52,091 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:52,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/sv-benchmarks/c/ldv-regression/test10.c [2020-11-28 04:32:52,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/data/b708b9a90/69bc76c22a1e4298b6d2452c266c2a52/FLAGec83f963e [2020-11-28 04:32:52,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/data/b708b9a90/69bc76c22a1e4298b6d2452c266c2a52 [2020-11-28 04:32:52,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:52,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:52,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:52,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:52,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:52,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f701b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52, skipping insertion in model container [2020-11-28 04:32:52,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:52,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:52,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:52,716 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:52,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:52,759 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:52,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52 WrapperNode [2020-11-28 04:32:52,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:52,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:52,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:52,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:52,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:52,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:52,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:52,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:52,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... [2020-11-28 04:32:52,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:52,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:52,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:52,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:52,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/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 04:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 04:32:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:32:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:32:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:32:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:32:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:52,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:32:55,907 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:55,907 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 04:32:55,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55 BoogieIcfgContainer [2020-11-28 04:32:55,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:55,911 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:55,911 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:55,924 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:55,924 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:55,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-28 04:32:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-28 04:32:55,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:55,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,558 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 04:32:57,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:57,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2020-11-28 04:32:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-11-28 04:32:57,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:32:57,509 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:32:57,517 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:32:57,529 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:32:57,533 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:32:57,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:57 ImpRootNode [2020-11-28 04:32:57,534 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:57,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:57,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:57,535 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:57,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55" (3/4) ... [2020-11-28 04:32:57,540 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:32:57,560 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 04:32:57,561 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:32:57,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:32:57,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:32:57,625 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c057dcec-1b52-46e7-a096-488831089e86/bin/ukojak/witness.graphml [2020-11-28 04:32:57,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:57,634 INFO L168 Benchmark]: Toolchain (without parser) took 5173.46 ms. Allocated memory is still 117.4 MB. Free memory was 84.8 MB in the beginning and 67.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,635 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 35.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:57,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.25 ms. Allocated memory is still 117.4 MB. Free memory was 84.6 MB in the beginning and 94.1 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.20 ms. Allocated memory is still 117.4 MB. Free memory was 94.1 MB in the beginning and 92.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,637 INFO L168 Benchmark]: Boogie Preprocessor took 25.42 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 91.4 MB in the end (delta: 628.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:57,637 INFO L168 Benchmark]: RCFGBuilder took 3078.87 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 48.8 MB in the end (delta: 42.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,639 INFO L168 Benchmark]: CodeCheck took 1623.14 ms. Allocated memory is still 117.4 MB. Free memory was 48.8 MB in the beginning and 70.1 MB in the end (delta: -21.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:57,640 INFO L168 Benchmark]: Witness Printer took 90.10 ms. Allocated memory is still 117.4 MB. Free memory was 70.1 MB in the beginning and 67.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,643 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: 1.5s, 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, 0.9s 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 35.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.25 ms. Allocated memory is still 117.4 MB. Free memory was 84.6 MB in the beginning and 94.1 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.20 ms. Allocated memory is still 117.4 MB. Free memory was 94.1 MB in the beginning and 92.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.42 ms. Allocated memory is still 117.4 MB. Free memory was 92.1 MB in the beginning and 91.4 MB in the end (delta: 628.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3078.87 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 48.8 MB in the end (delta: 42.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * CodeCheck took 1623.14 ms. Allocated memory is still 117.4 MB. Free memory was 48.8 MB in the beginning and 70.1 MB in the end (delta: -21.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 90.10 ms. Allocated memory is still 117.4 MB. Free memory was 70.1 MB in the beginning and 67.3 MB in the end (delta: 2.8 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...