./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/count_up_down-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/count_up_down-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI --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 39220193a6f0ba3a591d213916c0080f2ed370d08893716849d141f50c2ee13d ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:48:14,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:48:14,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:48:14,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:48:14,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:48:14,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:48:14,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:48:14,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:48:14,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:48:14,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:48:14,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:48:14,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:48:14,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:48:14,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:48:14,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:48:14,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:48:14,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:48:14,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:48:14,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:48:14,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:48:14,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:48:14,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:48:14,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:48:14,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:48:14,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:48:14,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:48:14,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:48:14,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:48:14,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:48:14,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:48:14,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:48:14,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:48:14,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:48:14,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:48:14,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:48:14,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:48:14,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:48:14,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:48:14,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:48:14,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:48:14,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:48:14,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:48:14,318 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:48:14,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:48:14,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:48:14,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:48:14,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:48:14,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:48:14,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:48:14,324 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:48:14,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:48:14,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:48:14,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:48:14,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:48:14,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:48:14,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:48:14,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:48:14,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:48:14,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:48:14,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:48:14,334 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:48:14,334 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:48:14,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:48:14,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:48:14,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:48:14,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:48:14,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:48:14,336 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:48:14,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:48:14,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:48:14,337 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_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39220193a6f0ba3a591d213916c0080f2ed370d08893716849d141f50c2ee13d [2021-10-29 03:48:14,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:48:14,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:48:14,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:48:14,703 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:48:14,704 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:48:14,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loops/count_up_down-2.c [2021-10-29 03:48:14,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/data/0fee3ca92/cdfbb88c9e484c8799e54a97ffe090e2/FLAG59a537ac3 [2021-10-29 03:48:15,301 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:48:15,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/sv-benchmarks/c/loops/count_up_down-2.c [2021-10-29 03:48:15,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/data/0fee3ca92/cdfbb88c9e484c8799e54a97ffe090e2/FLAG59a537ac3 [2021-10-29 03:48:15,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/data/0fee3ca92/cdfbb88c9e484c8799e54a97ffe090e2 [2021-10-29 03:48:15,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:48:15,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:48:15,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:48:15,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:48:15,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:48:15,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:15,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b101966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15, skipping insertion in model container [2021-10-29 03:48:15,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:15,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:48:15,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:48:15,922 WARN L228 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_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/sv-benchmarks/c/loops/count_up_down-2.c[327,340] [2021-10-29 03:48:15,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:48:15,966 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:48:15,980 WARN L228 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_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/sv-benchmarks/c/loops/count_up_down-2.c[327,340] [2021-10-29 03:48:15,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:48:15,998 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:48:15,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15 WrapperNode [2021-10-29 03:48:15,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:48:16,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:48:16,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:48:16,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:48:16,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:48:16,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:48:16,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:48:16,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:48:16,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:48:16,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:48:16,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:48:16,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:48:16,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:15" (1/1) ... [2021-10-29 03:48:16,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:48:16,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:48:16,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:48:16,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:48:16,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:48:16,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:48:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:48:16,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:48:16,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:48:16,427 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:48:16,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:48:16 BoogieIcfgContainer [2021-10-29 03:48:16,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:48:16,430 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:48:16,430 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:48:16,455 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:48:16,456 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:48:16" (1/1) ... [2021-10-29 03:48:16,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:48:16,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:48:16,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-10-29 03:48:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-10-29 03:48:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:48:16,526 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:48:16,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:48:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:16,634 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:48:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:16,701 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:48:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:16,721 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-29 03:48:16,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:48:16 ImpRootNode [2021-10-29 03:48:16,746 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:48:16,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:48:16,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:48:16,749 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:48:16,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:48:16" (3/4) ... [2021-10-29 03:48:16,751 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:48:16,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:48:16,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:48:16,796 INFO L168 Benchmark]: Toolchain (without parser) took 1099.71 ms. Allocated memory is still 125.8 MB. Free memory was 87.9 MB in the beginning and 76.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:16,798 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 104.9 MB in the beginning and 104.9 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:48:16,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.52 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 101.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:16,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.31 ms. Allocated memory is still 125.8 MB. Free memory was 101.3 MB in the beginning and 100.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:16,806 INFO L168 Benchmark]: Boogie Preprocessor took 29.79 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 98.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:48:16,807 INFO L168 Benchmark]: RCFGBuilder took 360.29 ms. Allocated memory is still 125.8 MB. Free memory was 98.9 MB in the beginning and 88.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:16,807 INFO L168 Benchmark]: CodeCheck took 315.87 ms. Allocated memory is still 125.8 MB. Free memory was 88.8 MB in the beginning and 77.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:16,808 INFO L168 Benchmark]: Witness Printer took 44.72 ms. Allocated memory is still 125.8 MB. Free memory was 77.8 MB in the beginning and 76.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:16,817 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 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, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int n = __VERIFIER_nondet_uint(); [L16] unsigned int x=n, y=0; [L17] COND FALSE !(x>0) [L6] COND TRUE !(cond) [L7] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory was 104.9 MB in the beginning and 104.9 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.52 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 101.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.31 ms. Allocated memory is still 125.8 MB. Free memory was 101.3 MB in the beginning and 100.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.79 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 98.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 360.29 ms. Allocated memory is still 125.8 MB. Free memory was 98.9 MB in the beginning and 88.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 315.87 ms. Allocated memory is still 125.8 MB. Free memory was 88.8 MB in the beginning and 77.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 44.72 ms. Allocated memory is still 125.8 MB. Free memory was 77.8 MB in the beginning and 76.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:48:16,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e388e0b-9117-4a5a-b8b3-bae32d5dd45b/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...