./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21-2.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_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/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_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/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_ac6f655f-f4cc-44dc-97de-779c490137de/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 712c5452cee1b4c02208da17c2cf0dc9636485194e157c656e1372fe334269f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:30:09,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:30:09,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:30:09,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:30:09,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:30:09,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:30:09,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:30:09,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:30:09,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:30:09,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:30:09,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:30:09,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:30:09,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:30:09,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:30:09,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:30:09,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:30:09,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:30:09,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:30:09,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:30:09,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:30:09,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:30:09,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:30:09,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:30:09,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:30:09,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:30:09,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:30:09,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:30:09,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:30:09,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:30:09,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:30:09,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:30:09,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:30:09,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:30:09,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:30:09,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:30:09,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:30:09,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:30:09,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:30:09,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:30:09,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:30:09,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:30:09,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:30:09,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:30:09,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:30:09,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:30:09,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:30:09,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:30:09,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:30:09,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:30:09,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:30:09,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:30:09,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:30:09,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:30:09,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:30:09,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:30:09,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:30:09,632 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:30:09,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:30:09,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:30:09,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:30:09,633 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:30:09,633 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:30:09,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:30:09,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:30:09,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:30:09,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:30:09,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:30:09,634 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:30:09,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:30:09,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:30:09,635 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_ac6f655f-f4cc-44dc-97de-779c490137de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712c5452cee1b4c02208da17c2cf0dc9636485194e157c656e1372fe334269f7 [2021-11-23 01:30:09,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:30:10,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:30:10,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:30:10,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:30:10,031 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:30:10,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-regression/test21-2.c [2021-11-23 01:30:10,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/data/c9574f0d1/00c161d2437b4ecf8dea81f9fc11a3dc/FLAG0a85ee1db [2021-11-23 01:30:10,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:30:10,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/sv-benchmarks/c/ldv-regression/test21-2.c [2021-11-23 01:30:10,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/data/c9574f0d1/00c161d2437b4ecf8dea81f9fc11a3dc/FLAG0a85ee1db [2021-11-23 01:30:10,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/data/c9574f0d1/00c161d2437b4ecf8dea81f9fc11a3dc [2021-11-23 01:30:10,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:30:10,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:30:10,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:30:10,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:30:10,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:30:10,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:30:10" (1/1) ... [2021-11-23 01:30:10,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb5909b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:10, skipping insertion in model container [2021-11-23 01:30:10,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:30:10" (1/1) ... [2021-11-23 01:30:10,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:30:10,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:30:11,123 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_ac6f655f-f4cc-44dc-97de-779c490137de/sv-benchmarks/c/ldv-regression/test21-2.c[892,905] [2021-11-23 01:30:11,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:30:11,140 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:30:11,157 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_ac6f655f-f4cc-44dc-97de-779c490137de/sv-benchmarks/c/ldv-regression/test21-2.c[892,905] [2021-11-23 01:30:11,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:30:11,172 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:30:11,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11 WrapperNode [2021-11-23 01:30:11,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:30:11,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:30:11,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:30:11,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:30:11,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,211 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2021-11-23 01:30:11,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:30:11,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:30:11,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:30:11,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:30:11,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:30:11,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:30:11,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:30:11,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:30:11,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:30:11,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:30:11,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:30:11,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:30:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:30:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:30:11,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:30:11,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-11-23 01:30:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-11-23 01:30:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:30:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:30:11,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:30:11,504 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:30:11,506 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:30:11,656 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:30:11,690 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:30:11,691 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:30:11,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:30:11 BoogieIcfgContainer [2021-11-23 01:30:11,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:30:11,694 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:30:11,694 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:30:11,705 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:30:11,706 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:30:11" (1/1) ... [2021-11-23 01:30:11,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:30:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:30:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 01:30:11,786 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 01:30:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:30:11,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:30:11,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:30:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:11,911 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:30:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:12,097 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:30:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:30:12,154 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-23 01:30:12,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:30:12 ImpRootNode [2021-11-23 01:30:12,204 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:30:12,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:30:12,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:30:12,205 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:30:12,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:30:11" (3/4) ... [2021-11-23 01:30:12,208 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:30:12,255 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:30:12,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:30:12,256 INFO L158 Benchmark]: Toolchain (without parser) took 1310.37ms. Allocated memory is still 107.0MB. Free memory was 85.2MB in the beginning and 55.5MB in the end (delta: 29.7MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-11-23 01:30:12,257 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 60.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:30:12,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.25ms. Allocated memory is still 107.0MB. Free memory was 84.8MB in the beginning and 75.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:30:12,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.72ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:12,259 INFO L158 Benchmark]: Boogie Preprocessor took 37.44ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 72.4MB in the end (delta: 986.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:30:12,260 INFO L158 Benchmark]: RCFGBuilder took 442.74ms. Allocated memory is still 107.0MB. Free memory was 72.4MB in the beginning and 74.8MB in the end (delta: -2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:30:12,260 INFO L158 Benchmark]: CodeCheck took 509.72ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 57.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 01:30:12,261 INFO L158 Benchmark]: Witness Printer took 50.65ms. Allocated memory is still 107.0MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:30:12,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 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: 44]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L11] struct dummy d1, d2; [L34] CALL init() [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L34] RET init() [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}, pd1={5:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L36] COND TRUE pd1 != 0 && pd1 == pd2 [L37] CALL, EXPR check(pd1, pd2) [L29] EXPR s1->a [L29] EXPR s2->b [L29] return s1->a == s2->b; [L37] RET, EXPR check(pd1, pd2) [L37] COND TRUE !check(pd1, pd2) [L44] reach_error() VAL [d1={4:0}, d2={5:0}, pd1={5:0}, pd2={5:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 60.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.25ms. Allocated memory is still 107.0MB. Free memory was 84.8MB in the beginning and 75.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.72ms. Allocated memory is still 107.0MB. Free memory was 75.2MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.44ms. Allocated memory is still 107.0MB. Free memory was 73.4MB in the beginning and 72.4MB in the end (delta: 986.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.74ms. Allocated memory is still 107.0MB. Free memory was 72.4MB in the beginning and 74.8MB in the end (delta: -2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * CodeCheck took 509.72ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 57.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 50.65ms. Allocated memory is still 107.0MB. Free memory was 57.6MB in the beginning and 55.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:30:12,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac6f655f-f4cc-44dc-97de-779c490137de/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