./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --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 1df1d3c2c05b97c248da484a3dd92d2a5284f58fae6383f6038575f7904076ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:57:23,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:57:23,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:57:23,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:57:23,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:57:23,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:57:23,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:57:23,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:57:23,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:57:23,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:57:23,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:57:23,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:57:23,912 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:57:23,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:57:23,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:57:23,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:57:23,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:57:23,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:57:23,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:57:23,918 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:57:23,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:57:23,919 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:57:23,920 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:57:23,921 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:57:23,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:57:23,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:57:23,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:57:23,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:57:23,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:57:23,925 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:57:23,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:57:23,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:57:23,928 INFO L153 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_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1df1d3c2c05b97c248da484a3dd92d2a5284f58fae6383f6038575f7904076ab [2023-11-11 23:57:24,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:57:24,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:57:24,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:57:24,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:57:24,333 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:57:24,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation_2.i [2023-11-11 23:57:27,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:57:27,917 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:57:27,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation_2.i [2023-11-11 23:57:27,927 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/data/7dd6e1ab7/1695a298646f4118a53316b30de7e4eb/FLAG67d5b91e1 [2023-11-11 23:57:27,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/data/7dd6e1ab7/1695a298646f4118a53316b30de7e4eb [2023-11-11 23:57:27,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:57:27,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:57:27,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:57:27,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:57:27,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:57:27,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:27" (1/1) ... [2023-11-11 23:57:27,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a81f636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:27, skipping insertion in model container [2023-11-11 23:57:27,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:57:27" (1/1) ... [2023-11-11 23:57:27,980 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:57:28,125 WARN L240 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_d74eb840-351e-44c9-90ae-ec28ddd329b2/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation_2.i[1053,1066] [2023-11-11 23:57:28,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:57:28,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:57:28,158 WARN L240 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_d74eb840-351e-44c9-90ae-ec28ddd329b2/sv-benchmarks/c/unsignedintegeroverflow-sas23/linear_interpolation_2.i[1053,1066] [2023-11-11 23:57:28,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:57:28,180 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:57:28,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28 WrapperNode [2023-11-11 23:57:28,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:57:28,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:57:28,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:57:28,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:57:28,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,231 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-11 23:57:28,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:57:28,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:57:28,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:57:28,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:57:28,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:57:28,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:57:28,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:57:28,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:57:28,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:57:28,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:57:28,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:57:28,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d74eb840-351e-44c9-90ae-ec28ddd329b2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:57:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:57:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:57:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:57:28,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:57:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-11 23:57:28,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-11 23:57:28,415 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:57:28,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:57:28,592 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:57:28,727 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:57:28,729 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-11 23:57:28,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:28 BoogieIcfgContainer [2023-11-11 23:57:28,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:57:28,734 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:57:28,734 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:57:28,745 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:57:28,746 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:57:28" (1/1) ... [2023-11-11 23:57:28,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:57:28,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:57:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-11 23:57:28,826 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-11 23:57:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:57:28,833 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:57:28,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:57:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:57:33,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-11 23:57:33,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-11 23:57:42,333 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-11 23:57:50,156 WARN L293 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 18 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-11 23:57:57,347 WARN L293 SmtUtils]: Spent 7.19s on a formula simplification. DAG size of input: 11 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-11 23:58:03,501 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)