./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be --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 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be --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 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef .......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:02:43,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:02:43,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:02:43,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:02:43,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:02:43,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:02:43,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:02:43,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:02:43,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:02:43,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:02:43,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:02:43,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:02:43,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:02:43,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:02:43,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:02:43,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:02:43,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:02:43,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:02:43,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:02:43,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:02:43,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:02:43,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:02:43,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:02:43,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:02:43,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:02:43,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:02:43,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:02:43,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:02:43,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:02:43,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:02:43,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:02:43,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:02:43,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:02:43,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:02:43,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:02:43,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:02:43,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:02:43,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:02:43,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:02:43,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:02:43,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:02:43,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:02:43,396 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:02:43,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:02:43,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:02:43,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:02:43,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:02:43,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:02:43,407 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:02:43,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:02:43,408 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:02:43,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:02:43,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:02:43,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:02:43,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:02:43,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:02:43,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:02:43,410 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:02:43,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:02:43,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:02:43,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:02:43,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:02:43,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:02:43,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:02:43,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:02:43,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:02:43,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:02:43,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:02:43,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:02:43,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:02:43,413 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:02:43,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:02:43,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:02:43,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:02:43,416 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_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef [2021-10-21 20:02:43,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:02:43,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:02:43,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:02:43,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:02:43,836 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:02:43,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-21 20:02:43,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/63cf0cff4/05fa942a9c96461f93e61db159e65ddf/FLAG8c59663c4 [2021-10-21 20:02:44,570 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:02:44,571 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-21 20:02:44,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/63cf0cff4/05fa942a9c96461f93e61db159e65ddf/FLAG8c59663c4 [2021-10-21 20:02:44,929 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/63cf0cff4/05fa942a9c96461f93e61db159e65ddf [2021-10-21 20:02:44,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:02:44,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:02:44,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:02:44,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:02:44,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:02:44,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:02:44" (1/1) ... [2021-10-21 20:02:44,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442afa5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:44, skipping insertion in model container [2021-10-21 20:02:44,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:02:44" (1/1) ... [2021-10-21 20:02:44,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:02:44,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:02:45,223 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_fad805ac-16ca-416e-9db9-daf68594d91d/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-21 20:02:45,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:02:45,258 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:02:45,281 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_fad805ac-16ca-416e-9db9-daf68594d91d/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-21 20:02:45,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:02:45,299 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:02:45,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45 WrapperNode [2021-10-21 20:02:45,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:02:45,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:02:45,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:02:45,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:02:45,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:02:45,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:02:45,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:02:45,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:02:45,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:02:45,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:02:45,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:02:45,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:02:45,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (1/1) ... [2021-10-21 20:02:45,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:02:45,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:45,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:45,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:02:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:02:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:02:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:02:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:02:45,691 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:02:45,691 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-21 20:02:45,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:02:45 BoogieIcfgContainer [2021-10-21 20:02:45,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:02:45,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:02:45,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:02:45,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:02:45,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:02:44" (1/3) ... [2021-10-21 20:02:45,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ab630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:02:45, skipping insertion in model container [2021-10-21 20:02:45,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:45" (2/3) ... [2021-10-21 20:02:45,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ab630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:02:45, skipping insertion in model container [2021-10-21 20:02:45,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:02:45" (3/3) ... [2021-10-21 20:02:45,722 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-10-21 20:02:45,728 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:02:45,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:02:45,800 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:02:45,824 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, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:02:45,824 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:02:45,864 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) [2021-10-21 20:02:45,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 20:02:45,869 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:02:45,870 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 20:02:45,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:02:45,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:45,888 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-21 20:02:45,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:02:45,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397774188] [2021-10-21 20:02:45,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:45,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:02:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:46,040 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:02:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:02:46,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:02:46,118 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:02:46,120 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:02:46,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:02:46,131 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:02:46,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:02:46 BoogieIcfgContainer [2021-10-21 20:02:46,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:02:46,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:02:46,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:02:46,161 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:02:46,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:02:45" (3/4) ... [2021-10-21 20:02:46,165 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:02:46,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:02:46,171 INFO L168 Benchmark]: Toolchain (without parser) took 1229.02 ms. Allocated memory is still 115.3 MB. Free memory was 78.8 MB in the beginning and 67.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:46,172 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory was 94.6 MB in the beginning and 94.6 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:02:46,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.83 ms. Allocated memory is still 115.3 MB. Free memory was 78.6 MB in the beginning and 92.7 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:46,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.66 ms. Allocated memory is still 115.3 MB. Free memory was 92.7 MB in the beginning and 91.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:02:46,176 INFO L168 Benchmark]: Boogie Preprocessor took 32.79 ms. Allocated memory is still 115.3 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:46,178 INFO L168 Benchmark]: RCFGBuilder took 315.00 ms. Allocated memory is still 115.3 MB. Free memory was 90.2 MB in the beginning and 81.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:46,184 INFO L168 Benchmark]: TraceAbstraction took 459.57 ms. Allocated memory is still 115.3 MB. Free memory was 81.0 MB in the beginning and 68.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:46,187 INFO L168 Benchmark]: Witness Printer took 5.92 ms. Allocated memory is still 115.3 MB. Free memory was 68.4 MB in the beginning and 67.9 MB in the end (delta: 508.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:46,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory was 94.6 MB in the beginning and 94.6 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 358.83 ms. Allocated memory is still 115.3 MB. Free memory was 78.6 MB in the beginning and 92.7 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.66 ms. Allocated memory is still 115.3 MB. Free memory was 92.7 MB in the beginning and 91.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.79 ms. Allocated memory is still 115.3 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 315.00 ms. Allocated memory is still 115.3 MB. Free memory was 90.2 MB in the beginning and 81.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 459.57 ms. Allocated memory is still 115.3 MB. Free memory was 81.0 MB in the beginning and 68.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.92 ms. Allocated memory is still 115.3 MB. Free memory was 68.4 MB in the beginning and 67.9 MB in the end (delta: 508.9 kB). Peak memory consumption was 2.1 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 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; [L9] COND TRUE result_8 != 0xfa [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 332.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 33.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.9ms SsaConstructionTime, 46.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 20:02:46,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:02:49,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:02:49,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:02:49,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:02:49,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:02:49,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:02:49,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:02:49,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:02:49,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:02:49,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:02:49,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:02:49,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:02:49,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:02:49,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:02:49,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:02:49,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:02:49,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:02:49,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:02:49,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:02:49,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:02:49,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:02:49,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:02:49,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:02:49,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:02:49,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:02:49,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:02:49,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:02:49,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:02:49,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:02:49,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:02:49,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:02:49,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:02:49,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:02:49,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:02:49,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:02:49,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:02:49,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:02:49,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:02:49,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:02:49,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:02:49,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:02:49,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 20:02:49,305 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:02:49,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:02:49,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:02:49,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:02:49,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:02:49,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:02:49,309 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:02:49,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:02:49,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:02:49,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:02:49,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:02:49,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:02:49,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:02:49,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:02:49,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:02:49,313 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:02:49,313 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:02:49,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:02:49,313 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:02:49,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:02:49,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:02:49,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:02:49,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:02:49,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:02:49,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:02:49,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:02:49,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:02:49,316 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:02:49,316 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:02:49,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:02:49,317 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:02:49,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:02:49,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:02:49,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:02:49,318 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef [2021-10-21 20:02:49,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:02:49,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:02:49,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:02:49,732 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:02:49,733 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:02:49,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-21 20:02:49,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/a331a231f/f710af6f8ec94a4f947f66296d9b63ed/FLAGc5ccc8a02 [2021-10-21 20:02:50,353 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:02:50,354 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-21 20:02:50,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/a331a231f/f710af6f8ec94a4f947f66296d9b63ed/FLAGc5ccc8a02 [2021-10-21 20:02:50,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/data/a331a231f/f710af6f8ec94a4f947f66296d9b63ed [2021-10-21 20:02:50,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:02:50,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:02:50,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:02:50,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:02:50,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:02:50,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:02:50" (1/1) ... [2021-10-21 20:02:50,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae19c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:50, skipping insertion in model container [2021-10-21 20:02:50,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:02:50" (1/1) ... [2021-10-21 20:02:50,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:02:50,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:02:50,998 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_fad805ac-16ca-416e-9db9-daf68594d91d/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-21 20:02:51,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:02:51,031 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:02:51,050 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_fad805ac-16ca-416e-9db9-daf68594d91d/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-21 20:02:51,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:02:51,068 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:02:51,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51 WrapperNode [2021-10-21 20:02:51,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:02:51,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:02:51,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:02:51,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:02:51,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:02:51,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:02:51,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:02:51,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:02:51,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:02:51,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:02:51,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:02:51,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:02:51,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (1/1) ... [2021-10-21 20:02:51,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:02:51,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:02:51,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:02:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:02:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:02:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 20:02:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:02:51,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:02:51,476 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-21 20:02:51,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:02:51 BoogieIcfgContainer [2021-10-21 20:02:51,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:02:51,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:02:51,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:02:51,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:02:51,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:02:50" (1/3) ... [2021-10-21 20:02:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c4c549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:02:51, skipping insertion in model container [2021-10-21 20:02:51,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:02:51" (2/3) ... [2021-10-21 20:02:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c4c549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:02:51, skipping insertion in model container [2021-10-21 20:02:51,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:02:51" (3/3) ... [2021-10-21 20:02:51,487 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-10-21 20:02:51,493 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:02:51,493 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:02:51,544 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:02:51,552 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, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:02:51,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:02:51,565 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) [2021-10-21 20:02:51,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-21 20:02:51,570 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:02:51,571 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-21 20:02:51,572 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:02:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:02:51,578 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-21 20:02:51,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:02:51,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733057089] [2021-10-21 20:02:51,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:02:51,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:02:51,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:02:51,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:02:51,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:02:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:02:51,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-21 20:02:51,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:02:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:02:51,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:02:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:02:51,920 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:02:51,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733057089] [2021-10-21 20:02:51,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733057089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:02:51,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:02:51,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-21 20:02:51,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075445641] [2021-10-21 20:02:51,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:02:51,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:02:51,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:02:51,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:02:51,948 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) [2021-10-21 20:02:51,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:02:51,965 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-21 20:02:51,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:02:51,967 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 [2021-10-21 20:02:51,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:02:51,974 INFO L225 Difference]: With dead ends: 11 [2021-10-21 20:02:51,974 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:02:51,977 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:02:51,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:02:51,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:02:52,000 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) [2021-10-21 20:02:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:02:52,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-21 20:02:52,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:02:52,003 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:02:52,003 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) [2021-10-21 20:02:52,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:02:52,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:02:52,006 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:02:52,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:02:52,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:02:52,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:02:52,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:02:52,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:02:52,281 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:02:52,281 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:02:52,281 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:02:52,281 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:02:52,282 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-21 20:02:52,283 INFO L853 garLoopResultBuilder]: At program point L15(lines 5 16) the Hoare annotation is: (= (bvadd (_ bv6 8) ULTIMATE.start_main_~result_8~0) (_ bv0 8)) [2021-10-21 20:02:52,283 INFO L853 garLoopResultBuilder]: At program point L10(lines 5 16) the Hoare annotation is: false [2021-10-21 20:02:52,285 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-21 20:02:52,290 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:02:52,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:02:52 BoogieIcfgContainer [2021-10-21 20:02:52,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:02:52,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:02:52,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:02:52,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:02:52,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:02:51" (3/4) ... [2021-10-21 20:02:52,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:02:52,317 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-21 20:02:52,317 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:02:52,317 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:02:52,317 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:02:52,347 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:02:52,347 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:02:52,349 INFO L168 Benchmark]: Toolchain (without parser) took 1601.54 ms. Allocated memory is still 69.2 MB. Free memory was 47.0 MB in the beginning and 36.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:52,350 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:02:52,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.87 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 37.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:52,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.95 ms. Allocated memory is still 69.2 MB. Free memory was 37.3 MB in the beginning and 52.9 MB in the end (delta: -15.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:52,352 INFO L168 Benchmark]: Boogie Preprocessor took 30.74 ms. Allocated memory is still 69.2 MB. Free memory was 52.9 MB in the beginning and 52.0 MB in the end (delta: 869.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:02:52,353 INFO L168 Benchmark]: RCFGBuilder took 281.64 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 43.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:52,354 INFO L168 Benchmark]: TraceAbstraction took 821.34 ms. Allocated memory is still 69.2 MB. Free memory was 42.8 MB in the beginning and 39.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:52,355 INFO L168 Benchmark]: Witness Printer took 45.28 ms. Allocated memory is still 69.2 MB. Free memory was 39.1 MB in the beginning and 36.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:02:52,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.87 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 37.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.95 ms. Allocated memory is still 69.2 MB. Free memory was 37.3 MB in the beginning and 52.9 MB in the end (delta: -15.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.74 ms. Allocated memory is still 69.2 MB. Free memory was 52.9 MB in the beginning and 52.0 MB in the end (delta: 869.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 281.64 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 43.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 821.34 ms. Allocated memory is still 69.2 MB. Free memory was 42.8 MB in the beginning and 39.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 45.28 ms. Allocated memory is still 69.2 MB. Free memory was 39.1 MB in the beginning and 36.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 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: 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: 747.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.0ms, AutomataDifference: 47.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 57.8ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.3ms 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: 9.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 44.6ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 10.3ms SsaConstructionTime, 34.4ms SatisfiabilityAnalysisTime, 194.6ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ~bvadd64(6bv8, result_8) == 0bv8 RESULT: Ultimate proved your program to be correct! [2021-10-21 20:02:52,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad805ac-16ca-416e-9db9-daf68594d91d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...