./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/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_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22f8891fc10bb8c305de18eb9540699e7b8a01ce ............................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:53:08,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:53:08,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:53:08,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:53:08,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:53:08,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:53:08,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:53:08,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:53:08,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:53:08,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:53:08,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:53:08,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:53:08,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:53:08,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:53:08,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:53:08,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:53:08,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:53:08,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:53:08,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:53:08,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:53:08,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:53:08,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:53:08,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:53:08,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:53:08,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:53:08,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:53:08,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:53:08,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:53:08,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:53:08,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:53:08,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:53:08,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:53:08,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:53:08,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:53:08,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:53:08,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:53:08,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:53:08,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:53:08,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:53:08,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:53:08,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:53:08,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 00:53:08,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:53:08,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:53:08,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:53:08,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:53:08,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:53:08,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:53:08,606 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:53:08,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:53:08,606 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:53:08,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:53:08,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:53:08,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:53:08,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:53:08,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:53:08,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:53:08,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:53:08,608 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 00:53:08,609 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:53:08,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:53:08,609 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:53:08,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:53:08,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:53:08,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:53:08,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:53:08,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:53:08,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:53:08,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:53:08,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:53:08,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:53:08,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:53:08,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:53:08,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:53:08,612 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_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22f8891fc10bb8c305de18eb9540699e7b8a01ce [2021-10-13 00:53:08,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:53:08,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:53:08,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:53:08,908 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:53:08,909 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:53:08,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/num_conversion_1.c [2021-10-13 00:53:08,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/data/aa4291f31/9834d0e9199e4b99b4bcee077e2825af/FLAG68a915136 [2021-10-13 00:53:09,462 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:53:09,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/sv-benchmarks/c/bitvector/num_conversion_1.c [2021-10-13 00:53:09,469 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/data/aa4291f31/9834d0e9199e4b99b4bcee077e2825af/FLAG68a915136 [2021-10-13 00:53:09,844 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/data/aa4291f31/9834d0e9199e4b99b4bcee077e2825af [2021-10-13 00:53:09,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:53:09,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:53:09,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:53:09,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:53:09,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:53:09,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:53:09" (1/1) ... [2021-10-13 00:53:09,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f2eb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:09, skipping insertion in model container [2021-10-13 00:53:09,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:53:09" (1/1) ... [2021-10-13 00:53:09,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:53:09,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:53:10,045 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_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/sv-benchmarks/c/bitvector/num_conversion_1.c[368,381] [2021-10-13 00:53:10,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:53:10,101 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:53:10,123 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_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/sv-benchmarks/c/bitvector/num_conversion_1.c[368,381] [2021-10-13 00:53:10,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:53:10,162 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:53:10,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10 WrapperNode [2021-10-13 00:53:10,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:53:10,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:53:10,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:53:10,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:53:10,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:53:10,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:53:10,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:53:10,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:53:10,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:53:10,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:53:10,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:53:10,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:53:10,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (1/1) ... [2021-10-13 00:53:10,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:53:10,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:53:10,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:53:10,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:53:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:53:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:53:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:53:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:53:10,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:53:10,578 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:53:10,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:10 BoogieIcfgContainer [2021-10-13 00:53:10,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:53:10,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:53:10,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:53:10,587 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:53:10,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:53:09" (1/3) ... [2021-10-13 00:53:10,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24498355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:53:10, skipping insertion in model container [2021-10-13 00:53:10,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:53:10" (2/3) ... [2021-10-13 00:53:10,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24498355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:53:10, skipping insertion in model container [2021-10-13 00:53:10,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:10" (3/3) ... [2021-10-13 00:53:10,591 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_1.c [2021-10-13 00:53:10,597 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:53:10,597 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 00:53:10,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:53:10,654 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 00:53:10,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 00:53:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 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 00:53:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 00:53:10,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:53:10,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 00:53:10,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-10-13 00:53:10,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:53:10,683 INFO L82 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-10-13 00:53:10,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:53:10,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792547704] [2021-10-13 00:53:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:53:10,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:53:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:10,802 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:53:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:53:10,846 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:53:10,849 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:53:10,850 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:53:10,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:53:10,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:53:10,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:53:10,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:53:10,854 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:53:10,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:53:10,861 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:53:10,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:53:10 BoogieIcfgContainer [2021-10-13 00:53:10,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:53:10,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:53:10,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:53:10,881 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:53:10,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:10" (3/4) ... [2021-10-13 00:53:10,885 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:53:10,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:53:10,888 INFO L168 Benchmark]: Toolchain (without parser) took 1032.72 ms. Allocated memory is still 125.8 MB. Free memory was 93.8 MB in the beginning and 75.5 MB in the end (delta: 18.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:10,889 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 42.4 MB in the beginning and 42.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:53:10,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.11 ms. Allocated memory is still 125.8 MB. Free memory was 93.6 MB in the beginning and 101.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:10,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.97 ms. Allocated memory is still 125.8 MB. Free memory was 101.2 MB in the beginning and 100.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:10,892 INFO L168 Benchmark]: Boogie Preprocessor took 50.48 ms. Allocated memory is still 125.8 MB. Free memory was 100.0 MB in the beginning and 99.1 MB in the end (delta: 896.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:53:10,893 INFO L168 Benchmark]: RCFGBuilder took 320.45 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 89.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:10,894 INFO L168 Benchmark]: TraceAbstraction took 296.20 ms. Allocated memory is still 125.8 MB. Free memory was 89.0 MB in the beginning and 76.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:53:10,894 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 125.8 MB. Free memory was 76.0 MB in the beginning and 75.5 MB in the end (delta: 460.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:53:10,898 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 81.8 MB. Free memory was 42.4 MB in the beginning and 42.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.11 ms. Allocated memory is still 125.8 MB. Free memory was 93.6 MB in the beginning and 101.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.97 ms. Allocated memory is still 125.8 MB. Free memory was 101.2 MB in the beginning and 100.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.48 ms. Allocated memory is still 125.8 MB. Free memory was 100.0 MB in the beginning and 99.1 MB in the end (delta: 896.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 320.45 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 89.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 296.20 ms. Allocated memory is still 125.8 MB. Free memory was 89.0 MB in the beginning and 76.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.44 ms. Allocated memory is still 125.8 MB. Free memory was 76.0 MB in the beginning and 75.5 MB in the end (delta: 460.9 kB). There was no memory consumed. 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: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 24. Possible FailurePath: [L16] unsigned char x; [L17] unsigned char y; [L18] unsigned char c; [L20] x = 37 [L21] y = 0 [L22] c = 0 [L23] COND TRUE c < (unsigned char)8 [L24] ((unsigned char)1) << c - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 29]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 29]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 214.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: 5.9ms SsaConstructionTime, 39.6ms 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 [2021-10-13 00:53:10,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bc3eec0-fef6-4840-b2be-46c7e6bfe965/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...