./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a497a150fdf4a177a0de88b8e6045db4397f0d66c8b216bb0e33d15a7fea1470 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:27:59,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:27:59,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:27:59,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:27:59,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:27:59,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:27:59,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:27:59,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:27:59,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:27:59,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:27:59,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:27:59,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:27:59,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:27:59,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:27:59,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:27:59,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:27:59,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:27:59,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:27:59,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:27:59,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:27:59,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:27:59,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:27:59,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:27:59,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:27:59,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:27:59,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:27:59,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:27:59,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:27:59,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:27:59,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:27:59,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:27:59,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:27:59,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:27:59,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:27:59,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:27:59,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:27:59,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:27:59,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:27:59,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:27:59,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:27:59,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:27:59,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:27:59,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:27:59,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:27:59,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:27:59,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:27:59,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:27:59,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:27:59,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:27:59,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:27:59,250 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:27:59,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:27:59,250 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:27:59,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:27:59,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:27:59,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:27:59,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:27:59,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:27:59,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:27:59,251 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:27:59,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:27:59,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:27:59,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:27:59,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:27:59,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:27:59,253 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a497a150fdf4a177a0de88b8e6045db4397f0d66c8b216bb0e33d15a7fea1470 [2022-12-13 21:27:59,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:27:59,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:27:59,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:27:59,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:27:59,459 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:27:59,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c [2022-12-13 21:28:02,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:28:02,308 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:28:02,309 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c [2022-12-13 21:28:02,314 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/data/0db0f728d/67eeb545ee9745cda09dde77bc67d6d3/FLAG5144244ae [2022-12-13 21:28:02,327 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/data/0db0f728d/67eeb545ee9745cda09dde77bc67d6d3 [2022-12-13 21:28:02,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:28:02,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:28:02,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:28:02,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:28:02,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:28:02,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6508e9cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02, skipping insertion in model container [2022-12-13 21:28:02,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:28:02,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:28:02,472 WARN L237 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_c300efb3-c374-4f8c-8420-c8eac38ac814/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c[417,430] [2022-12-13 21:28:02,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:28:02,487 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:28:02,499 WARN L237 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_c300efb3-c374-4f8c-8420-c8eac38ac814/sv-benchmarks/c/bitvector-regression/implicitunsignedconversion-2.c[417,430] [2022-12-13 21:28:02,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:28:02,512 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:28:02,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02 WrapperNode [2022-12-13 21:28:02,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:28:02,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:28:02,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:28:02,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:28:02,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,537 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-12-13 21:28:02,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:28:02,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:28:02,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:28:02,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:28:02,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:28:02,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:28:02,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:28:02,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:28:02,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (1/1) ... [2022-12-13 21:28:02,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:28:02,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:28:02,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:28:02,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:28:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:28:02,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:28:02,664 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:28:02,666 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:28:02,717 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:28:02,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:28:02,722 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:28:02,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:28:02 BoogieIcfgContainer [2022-12-13 21:28:02,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:28:02,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:28:02,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:28:02,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:28:02,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:28:02" (1/3) ... [2022-12-13 21:28:02,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0862b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:28:02, skipping insertion in model container [2022-12-13 21:28:02,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:02" (2/3) ... [2022-12-13 21:28:02,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0862b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:28:02, skipping insertion in model container [2022-12-13 21:28:02,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:28:02" (3/3) ... [2022-12-13 21:28:02,732 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-2.c [2022-12-13 21:28:02,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:28:02,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:28:02,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:28:02,801 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d8ee675, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:28:02,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:28:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:28:02,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-13 21:28:02,810 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:28:02,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-13 21:28:02,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:28:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:28:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2022-12-13 21:28:02,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:28:02,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596801709] [2022-12-13 21:28:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:28:02,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:28:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:28:03,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:28:03,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596801709] [2022-12-13 21:28:03,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596801709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:28:03,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:28:03,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:28:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559849754] [2022-12-13 21:28:03,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:28:03,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:28:03,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:28:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:28:03,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:28:03,117 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:28:03,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:28:03,132 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-12-13 21:28:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:28:03,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-13 21:28:03,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:28:03,141 INFO L225 Difference]: With dead ends: 11 [2022-12-13 21:28:03,141 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 21:28:03,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:28:03,148 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:28:03,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:28:03,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 21:28:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 21:28:03,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:28:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 21:28:03,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-12-13 21:28:03,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:28:03,175 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:28:03,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:28:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:28:03,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 21:28:03,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:28:03,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:28:03,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 21:28:03,197 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 21:28:03,198 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 21:28:03,198 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 21:28:03,198 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-12-13 21:28:03,198 INFO L895 garLoopResultBuilder]: At program point main_ERROR#1(lines 5 16) the Hoare annotation is: false [2022-12-13 21:28:03,199 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 21:28:03,199 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2022-12-13 21:28:03,199 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 16) the Hoare annotation is: (and (= |ULTIMATE.start_main_~plus_one~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~minus_one~0#1| 1)) (not (<= (div |ULTIMATE.start_main_~plus_one~0#1| 4294967296) (div |ULTIMATE.start_main_~minus_one~0#1| 4294967296)))) [2022-12-13 21:28:03,203 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 21:28:03,205 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:28:03,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:28:03 BoogieIcfgContainer [2022-12-13 21:28:03,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:28:03,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:28:03,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:28:03,221 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:28:03,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:28:02" (3/4) ... [2022-12-13 21:28:03,224 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:28:03,232 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 21:28:03,232 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 21:28:03,232 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 21:28:03,232 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:28:03,255 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:28:03,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:28:03,256 INFO L158 Benchmark]: Toolchain (without parser) took 924.91ms. Allocated memory is still 148.9MB. Free memory was 113.8MB in the beginning and 64.5MB in the end (delta: 49.3MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-12-13 21:28:03,256 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:28:03,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.96ms. Allocated memory is still 148.9MB. Free memory was 113.3MB in the beginning and 103.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:28:03,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.94ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:28:03,257 INFO L158 Benchmark]: Boogie Preprocessor took 15.23ms. Allocated memory is still 148.9MB. Free memory was 102.3MB in the beginning and 101.7MB in the end (delta: 562.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:28:03,258 INFO L158 Benchmark]: RCFGBuilder took 170.15ms. Allocated memory is still 148.9MB. Free memory was 101.2MB in the beginning and 92.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:28:03,258 INFO L158 Benchmark]: TraceAbstraction took 493.52ms. Allocated memory is still 148.9MB. Free memory was 92.4MB in the beginning and 66.7MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 21:28:03,258 INFO L158 Benchmark]: Witness Printer took 35.15ms. Allocated memory is still 148.9MB. Free memory was 66.7MB in the beginning and 64.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:28:03,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.96ms. Allocated memory is still 148.9MB. Free memory was 113.3MB in the beginning and 103.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.94ms. Allocated memory is still 148.9MB. Free memory was 103.8MB in the beginning and 102.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.23ms. Allocated memory is still 148.9MB. Free memory was 102.3MB in the beginning and 101.7MB in the end (delta: 562.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 170.15ms. Allocated memory is still 148.9MB. Free memory was 101.2MB in the beginning and 92.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 493.52ms. Allocated memory is still 148.9MB. Free memory was 92.4MB in the beginning and 66.7MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 35.15ms. Allocated memory is still 148.9MB. Free memory was 66.7MB in the beginning and 64.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (plus_one == 1 && 0 <= minus_one + 1) && !(plus_one / 4294967296 <= minus_one / 4294967296) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-12-13 21:28:03,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c300efb3-c374-4f8c-8420-c8eac38ac814/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE