./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/trex01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/trex01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ --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 fcd99b2df0924887988cb47edc94be4a868bdcbcd74e734872c50b1f1ade5738 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:03:21,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:03:21,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:03:21,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:03:21,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:03:21,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:03:21,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:03:21,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:03:21,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:03:21,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:03:21,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:03:21,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:03:21,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:03:21,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:03:21,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:03:21,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:03:21,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:03:21,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:03:21,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:03:21,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:03:21,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:03:21,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:03:21,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:03:21,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:03:21,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:03:21,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:03:21,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:03:21,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:03:21,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:03:21,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:03:21,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:03:21,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:03:21,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:03:21,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:03:21,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:03:21,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:03:21,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:03:21,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:03:21,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:03:21,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:03:21,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:03:21,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:03:21,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:03:21,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:03:21,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:03:21,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:03:21,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:03:21,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:03:21,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:03:21,319 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:03:21,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:03:21,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:03:21,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:03:21,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:03:21,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:03:21,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:03:21,325 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:03:21,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:03:21,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:03:21,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:03:21,327 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:03:21,327 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:03:21,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:03:21,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:03:21,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:03:21,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:03:21,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:03:21,329 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:03:21,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:03:21,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:03:21,330 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_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcd99b2df0924887988cb47edc94be4a868bdcbcd74e734872c50b1f1ade5738 [2021-11-23 01:03:21,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:03:21,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:03:21,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:03:21,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:03:21,727 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:03:21,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loops/trex01-2.i [2021-11-23 01:03:21,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/data/eac4dd069/8a9cbeb82abe4ae9bb0e105249eabeb3/FLAGd8885907f [2021-11-23 01:03:22,421 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:03:22,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/sv-benchmarks/c/loops/trex01-2.i [2021-11-23 01:03:22,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/data/eac4dd069/8a9cbeb82abe4ae9bb0e105249eabeb3/FLAGd8885907f [2021-11-23 01:03:22,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/data/eac4dd069/8a9cbeb82abe4ae9bb0e105249eabeb3 [2021-11-23 01:03:22,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:03:22,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:03:22,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:03:22,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:03:22,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:03:22,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:22" (1/1) ... [2021-11-23 01:03:22,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe57781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:22, skipping insertion in model container [2021-11-23 01:03:22,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:03:22" (1/1) ... [2021-11-23 01:03:22,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:03:22,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:03:23,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/sv-benchmarks/c/loops/trex01-2.i[895,908] [2021-11-23 01:03:23,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:03:23,148 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:03:23,161 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/sv-benchmarks/c/loops/trex01-2.i[895,908] [2021-11-23 01:03:23,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:03:23,183 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:03:23,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23 WrapperNode [2021-11-23 01:03:23,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:03:23,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:03:23,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:03:23,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:03:23,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,223 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2021-11-23 01:03:23,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:03:23,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:03:23,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:03:23,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:03:23,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:03:23,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:03:23,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:03:23,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:03:23,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:03:23,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:03:23,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:03:23,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:03:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:03:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-23 01:03:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-23 01:03:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:03:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:03:23,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:03:23,425 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:03:23,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:03:23,572 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:03:23,611 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:03:23,615 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 01:03:23,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:23 BoogieIcfgContainer [2021-11-23 01:03:23,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:03:23,619 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:03:23,619 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:03:23,629 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:03:23,630 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:23" (1/1) ... [2021-11-23 01:03:23,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:03:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2021-11-23 01:03:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2021-11-23 01:03:23,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:03:23,711 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:23,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:03:24,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-11-23 01:03:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-11-23 01:03:24,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:03:24,014 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2021-11-23 01:03:24,026 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:03:24,067 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-23 01:03:24,079 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:03:24,079 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:03:24,079 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:03:24,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:03:24 ImpRootNode [2021-11-23 01:03:24,080 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:03:24,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:03:24,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:03:24,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:03:24,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:03:23" (3/4) ... [2021-11-23 01:03:24,103 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:03:24,112 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2021-11-23 01:03:24,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-23 01:03:24,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:03:24,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:03:24,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:03:24,192 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:03:24,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:03:24,194 INFO L158 Benchmark]: Toolchain (without parser) took 1375.23ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 78.9MB in the beginning and 118.1MB in the end (delta: -39.2MB). Peak memory consumption was 577.2kB. Max. memory is 16.1GB. [2021-11-23 01:03:24,195 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:03:24,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.77ms. Allocated memory is still 107.0MB. Free memory was 78.7MB in the beginning and 82.4MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:03:24,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.57ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:03:24,198 INFO L158 Benchmark]: Boogie Preprocessor took 23.55ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 79.9MB in the end (delta: 994.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:03:24,199 INFO L158 Benchmark]: RCFGBuilder took 369.36ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 69.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:03:24,200 INFO L158 Benchmark]: CodeCheck took 461.58ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 69.3MB in the beginning and 119.8MB in the end (delta: -50.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:03:24,201 INFO L158 Benchmark]: Witness Printer took 111.40ms. Allocated memory is still 144.7MB. Free memory was 119.7MB in the beginning and 118.1MB in the end (delta: 1.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2021-11-23 01:03:24,207 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 11 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 <= z - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: 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 0.18ms. Allocated memory is still 107.0MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.77ms. Allocated memory is still 107.0MB. Free memory was 78.7MB in the beginning and 82.4MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.57ms. Allocated memory is still 107.0MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.55ms. Allocated memory is still 107.0MB. Free memory was 80.9MB in the beginning and 79.9MB in the end (delta: 994.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.36ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 69.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 461.58ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 69.3MB in the beginning and 119.8MB in the end (delta: -50.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 111.40ms. Allocated memory is still 144.7MB. Free memory was 119.7MB in the beginning and 118.1MB in the end (delta: 1.6MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:03:24,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a194bc6-0ec1-4a02-a75a-ceda9ad8bf11/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE