./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test08.c --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_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/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_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/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_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/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 55f41c66c50792cda5d5bbe104482e2cd600942b05623220f52aeb9f6286617d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:19:13,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:19:13,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:19:13,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:19:13,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:19:13,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:19:13,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:19:13,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:19:13,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:19:13,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:19:13,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:19:13,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:19:13,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:19:13,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:19:13,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:19:13,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:19:13,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:19:13,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:19:13,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:19:13,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:19:13,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:19:13,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:19:13,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:19:13,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:19:13,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:19:13,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:19:13,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:19:13,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:19:13,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:19:13,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:19:13,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:19:13,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:19:13,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:19:13,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:19:13,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:19:13,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:19:13,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:19:13,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:19:13,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:19:13,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:19:13,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:19:13,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:19:13,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:19:13,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:19:13,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:19:13,266 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:19:13,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:19:13,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:19:13,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:19:13,267 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:19:13,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:19:13,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:19:13,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:19:13,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:19:13,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:19:13,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:19:13,268 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:19:13,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:19:13,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:19:13,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:19:13,269 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:19:13,269 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:19:13,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:19:13,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:19:13,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:19:13,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:19:13,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:19:13,271 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:19:13,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:19:13,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:19:13,271 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_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55f41c66c50792cda5d5bbe104482e2cd600942b05623220f52aeb9f6286617d [2021-11-23 01:19:13,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:19:13,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:19:13,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:19:13,578 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:19:13,579 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:19:13,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-regression/test08.c [2021-11-23 01:19:13,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/data/c02ae2347/fbe18a4bb2a9452c9234744512634c2d/FLAG59f1f7258 [2021-11-23 01:19:14,198 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:19:14,199 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/sv-benchmarks/c/ldv-regression/test08.c [2021-11-23 01:19:14,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/data/c02ae2347/fbe18a4bb2a9452c9234744512634c2d/FLAG59f1f7258 [2021-11-23 01:19:14,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/data/c02ae2347/fbe18a4bb2a9452c9234744512634c2d [2021-11-23 01:19:14,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:19:14,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:19:14,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:19:14,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:19:14,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:19:14,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3fc65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14, skipping insertion in model container [2021-11-23 01:19:14,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:19:14,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:19:14,795 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_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/sv-benchmarks/c/ldv-regression/test08.c[578,591] [2021-11-23 01:19:14,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:19:14,808 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:19:14,825 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_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/sv-benchmarks/c/ldv-regression/test08.c[578,591] [2021-11-23 01:19:14,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:19:14,844 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:19:14,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14 WrapperNode [2021-11-23 01:19:14,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:19:14,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:19:14,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:19:14,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:19:14,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,896 INFO L137 Inliner]: procedures = 12, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2021-11-23 01:19:14,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:19:14,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:19:14,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:19:14,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:19:14,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:19:14,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:19:14,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:19:14,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:19:14,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:19:14" (1/1) ... [2021-11-23 01:19:14,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:19:14,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:19:14,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:19:15,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:19:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:19:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:19:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:19:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:19:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:19:15,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:19:15,091 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:19:15,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:19:15,206 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:19:15,244 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:19:15,244 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:19:15,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:15 BoogieIcfgContainer [2021-11-23 01:19:15,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:19:15,248 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:19:15,248 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:19:15,258 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:19:15,258 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:15" (1/1) ... [2021-11-23 01:19:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:19:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:19:15,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2021-11-23 01:19:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2021-11-23 01:19:15,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 01:19:15,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:19:15,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:19:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:19:15,494 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:19:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:19:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:19:15,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:19:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:19:15,637 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-23 01:19:15,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:19:15 ImpRootNode [2021-11-23 01:19:15,687 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:19:15,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:19:15,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:19:15,689 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:19:15,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:19:15" (3/4) ... [2021-11-23 01:19:15,691 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:19:15,739 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:19:15,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:19:15,742 INFO L158 Benchmark]: Toolchain (without parser) took 1155.91ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 53.2MB in the beginning and 80.3MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:19:15,745 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:19:15,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.62ms. Allocated memory is still 86.0MB. Free memory was 53.1MB in the beginning and 62.3MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:19:15,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.83ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 60.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:19:15,748 INFO L158 Benchmark]: Boogie Preprocessor took 40.97ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 59.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:19:15,749 INFO L158 Benchmark]: RCFGBuilder took 307.63ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 48.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:19:15,749 INFO L158 Benchmark]: CodeCheck took 439.70ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 48.9MB in the beginning and 82.3MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:19:15,750 INFO L158 Benchmark]: Witness Printer took 52.64ms. Allocated memory is still 109.1MB. Free memory was 82.2MB in the beginning and 80.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:19:15,754 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. OverallTime: 0.4s, 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: , 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, 3 NumberOfCodeBlocks, 3 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: 38]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] int a, b; [L7] int *p1, *p2; [L21] p1 = &a [L22] p2 = &b [L24] b = 1 [L25] a = 5 [L27] EXPR \read(a) [L27] a-- [L29] CALL, EXPR f() [L10] EXPR \read(*p1) [L10] EXPR \read(*p2) [L10] EXPR \read(a) [L10] int v = *p1 + *p2 - a; [L11] COND TRUE v == 1 [L12] p1 = p2 [L13] return v; [L29] RET, EXPR f() [L29] a = f() [L31] EXPR \read(a) VAL [\read(a)=1, a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] [L31] COND TRUE a && p1 == p2 [L38] reach_error() VAL [a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.62ms. Allocated memory is still 86.0MB. Free memory was 53.1MB in the beginning and 62.3MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.83ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 60.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.97ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 59.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.63ms. Allocated memory is still 86.0MB. Free memory was 59.7MB in the beginning and 48.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 439.70ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 48.9MB in the beginning and 82.3MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.64ms. Allocated memory is still 109.1MB. Free memory was 82.2MB in the beginning and 80.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:19:15,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fffdc8f-5ce9-4c62-b9b2-24e3eb2f0e45/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE