./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt --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 b158af10e4b33c83f51d06d3962a6bea4ea2d792 .............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:31:12,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:31:12,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:31:12,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:31:12,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:31:12,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:31:12,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:31:12,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:31:12,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:31:12,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:31:12,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:31:12,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:31:12,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:31:12,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:31:12,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:31:12,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:31:12,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:31:12,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:31:12,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:31:12,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:31:12,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:31:12,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:31:12,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:31:12,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:31:12,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:31:12,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:31:12,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:31:12,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:31:12,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:31:12,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:31:12,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:31:12,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:31:12,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:31:12,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:31:12,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:31:12,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:31:12,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:31:12,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:31:12,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:31:12,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:31:12,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:31:12,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:31:12,394 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:31:12,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:31:12,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:31:12,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:31:12,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:31:12,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:31:12,405 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:31:12,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:31:12,406 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:31:12,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:31:12,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:31:12,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:31:12,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:31:12,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:31:12,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:31:12,408 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:31:12,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:31:12,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:31:12,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:31:12,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:31:12,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:31:12,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:31:12,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:31:12,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:31:12,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:31:12,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:31:12,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:31:12,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:31:12,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:31:12,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:31:12,412 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_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b158af10e4b33c83f51d06d3962a6bea4ea2d792 [2021-10-13 00:31:12,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:31:12,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:31:12,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:31:12,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:31:12,862 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:31:12,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector-regression/signextension-2.c [2021-10-13 00:31:12,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/data/935d15fd2/26ab059c1c6341f382f2ede88615c48f/FLAGda629b96e [2021-10-13 00:31:13,628 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:31:13,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/sv-benchmarks/c/bitvector-regression/signextension-2.c [2021-10-13 00:31:13,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/data/935d15fd2/26ab059c1c6341f382f2ede88615c48f/FLAGda629b96e [2021-10-13 00:31:13,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/data/935d15fd2/26ab059c1c6341f382f2ede88615c48f [2021-10-13 00:31:13,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:31:13,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:31:13,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:31:13,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:31:13,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:31:13,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:31:13" (1/1) ... [2021-10-13 00:31:13,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a566eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:13, skipping insertion in model container [2021-10-13 00:31:13,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:31:13" (1/1) ... [2021-10-13 00:31:14,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:31:14,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:31:14,269 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/sv-benchmarks/c/bitvector-regression/signextension-2.c[922,935] [2021-10-13 00:31:14,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:31:14,286 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:31:14,305 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/sv-benchmarks/c/bitvector-regression/signextension-2.c[922,935] [2021-10-13 00:31:14,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:31:14,323 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:31:14,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14 WrapperNode [2021-10-13 00:31:14,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:31:14,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:31:14,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:31:14,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:31:14,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:31:14,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:31:14,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:31:14,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:31:14,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:31:14,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:31:14,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:31:14,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:31:14,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (1/1) ... [2021-10-13 00:31:14,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:31:14,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:31:14,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:31:14,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:31:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:31:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:31:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:31:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:31:14,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:31:14,779 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:31:14,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:31:14 BoogieIcfgContainer [2021-10-13 00:31:14,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:31:14,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:31:14,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:31:14,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:31:14,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:31:13" (1/3) ... [2021-10-13 00:31:14,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d22a0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:31:14, skipping insertion in model container [2021-10-13 00:31:14,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:31:14" (2/3) ... [2021-10-13 00:31:14,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d22a0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:31:14, skipping insertion in model container [2021-10-13 00:31:14,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:31:14" (3/3) ... [2021-10-13 00:31:14,794 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension-2.c [2021-10-13 00:31:14,801 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:31:14,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:31:14,879 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:31:14,890 INFO L339 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, mConcurrency=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:31:14,891 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:31:14,910 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) [2021-10-13 00:31:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 00:31:14,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:31:14,917 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 00:31:14,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:31:14,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:31:14,928 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-13 00:31:14,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:31:14,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741974163] [2021-10-13 00:31:14,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:31:14,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:31:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:31:15,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:31:15,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:31:15,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741974163] [2021-10-13 00:31:15,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741974163] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:31:15,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:31:15,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:31:15,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487749763] [2021-10-13 00:31:15,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:31:15,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:31:15,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:31:15,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:15,748 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) [2021-10-13 00:31:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:31:15,775 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-13 00:31:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:31:15,786 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 [2021-10-13 00:31:15,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:31:15,795 INFO L225 Difference]: With dead ends: 11 [2021-10-13 00:31:15,795 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:31:15,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:31:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:31:15,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:31:15,827 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) [2021-10-13 00:31:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:31:15,829 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-13 00:31:15,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:31:15,831 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:31:15,831 INFO L471 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) [2021-10-13 00:31:15,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:31:15,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:31:15,835 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:31:15,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:31:15,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:31:15,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:31:15,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:31:15,925 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:31:15,925 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:31:15,926 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:31:15,926 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:31:15,927 INFO L853 garLoopResultBuilder]: At program point L28(lines 5 29) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div ULTIMATE.start_main_~unsignedtounsigned~0 4294967296)))) (and (< 65534 ULTIMATE.start_main_~unsignedtosigned~0) (<= ULTIMATE.start_main_~unsignedtounsigned~0 65535) (< (+ 65534 .cse0) ULTIMATE.start_main_~unsignedtounsigned~0) (<= (+ ULTIMATE.start_main_~signedtounsigned~0 1) 0) (<= ULTIMATE.start_main_~unsignedtosigned~0 65535) (<= ULTIMATE.start_main_~unsignedtounsigned~0 (+ 65535 .cse0)) (= (+ ULTIMATE.start_main_~signedtosigned~0 1) 0) (< (+ (* 4294967296 (div ULTIMATE.start_main_~signedtounsigned~0 4294967296)) 4294967294) ULTIMATE.start_main_~signedtounsigned~0))) [2021-10-13 00:31:15,927 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2021-10-13 00:31:15,928 INFO L853 garLoopResultBuilder]: At program point L23(lines 5 29) the Hoare annotation is: false [2021-10-13 00:31:15,928 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 24) no Hoare annotation was computed. [2021-10-13 00:31:15,934 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:31:15,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:31:15 BoogieIcfgContainer [2021-10-13 00:31:15,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:31:15,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:31:15,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:31:15,966 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:31:15,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:31:14" (3/4) ... [2021-10-13 00:31:15,972 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:31:15,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:31:15,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:31:15,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:31:15,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:31:16,048 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:31:16,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:31:16,050 INFO L168 Benchmark]: Toolchain (without parser) took 2065.25 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 55.2 MB in the beginning and 58.2 MB in the end (delta: -3.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:16,051 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:31:16,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.37 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 55.0 MB in the beginning and 105.8 MB in the end (delta: -50.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:16,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.72 ms. Allocated memory is still 130.0 MB. Free memory was 105.8 MB in the beginning and 104.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:16,053 INFO L168 Benchmark]: Boogie Preprocessor took 22.88 ms. Allocated memory is still 130.0 MB. Free memory was 104.4 MB in the beginning and 103.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:31:16,054 INFO L168 Benchmark]: RCFGBuilder took 391.49 ms. Allocated memory is still 130.0 MB. Free memory was 103.0 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:16,054 INFO L168 Benchmark]: TraceAbstraction took 1177.34 ms. Allocated memory is still 130.0 MB. Free memory was 93.9 MB in the beginning and 61.1 MB in the end (delta: 32.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:16,055 INFO L168 Benchmark]: Witness Printer took 82.28 ms. Allocated memory is still 130.0 MB. Free memory was 61.1 MB in the beginning and 58.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:31:16,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 60.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.37 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 55.0 MB in the beginning and 105.8 MB in the end (delta: -50.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.72 ms. Allocated memory is still 130.0 MB. Free memory was 105.8 MB in the beginning and 104.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.88 ms. Allocated memory is still 130.0 MB. Free memory was 104.4 MB in the beginning and 103.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 391.49 ms. Allocated memory is still 130.0 MB. Free memory was 103.0 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1177.34 ms. Allocated memory is still 130.0 MB. Free memory was 93.9 MB in the beginning and 61.1 MB in the end (delta: 32.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 82.28 ms. Allocated memory is still 130.0 MB. Free memory was 61.1 MB in the beginning and 58.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 27]: 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: 1056.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.5ms, AutomataDifference: 71.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 88.2ms, InitialAbstractionConstructionTime: 13.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.3ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 48 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 37.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 42.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 17.1ms SsaConstructionTime, 142.3ms SatisfiabilityAnalysisTime, 524.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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: ((((((65534 < unsignedtosigned && unsignedtounsigned <= 65535) && 65534 + 4294967296 * (unsignedtounsigned / 4294967296) < unsignedtounsigned) && signedtounsigned + 1 <= 0) && unsignedtosigned <= 65535) && unsignedtounsigned <= 65535 + 4294967296 * (unsignedtounsigned / 4294967296)) && signedtosigned + 1 == 0) && 4294967296 * (signedtounsigned / 4294967296) + 4294967294 < signedtounsigned - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:31:16,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2431dbf2-bc23-4ce5-bb5f-3108538d6e44/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...