./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/num_conversion_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/num_conversion_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC --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 6f17fe8c9c038caf356703f241998bd5fc14538d ........................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/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 0.2.0-7b2dab5 [2021-10-11 00:33:32,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:33:32,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:33:32,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:33:32,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:33:32,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:33:32,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:33:32,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:33:32,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:33:32,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:33:32,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:33:32,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:33:32,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:33:32,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:33:32,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:33:32,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:33:32,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:33:32,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:33:32,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:33:32,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:33:32,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:33:32,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:33:32,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:33:32,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:33:32,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:33:32,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:33:32,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:33:32,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:33:32,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:33:32,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:33:32,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:33:32,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:33:32,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:33:32,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:33:32,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:33:32,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:33:32,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:33:32,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:33:32,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:33:32,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:33:32,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:33:32,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-11 00:33:32,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:33:32,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:33:32,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:33:32,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:33:32,795 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:33:32,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:33:32,796 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:33:32,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:33:32,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:33:32,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:33:32,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:33:32,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:33:32,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:33:32,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:33:32,805 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:33:32,806 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:33:32,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:33:32,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:33:32,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:33:32,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:33:32,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:33:32,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:33:32,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:32,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:33:32,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:33:32,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:33:32,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:33:32,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:33:32,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:33:32,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:33:32,809 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_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f17fe8c9c038caf356703f241998bd5fc14538d [2021-10-11 00:33:33,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:33:33,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:33:33,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:33:33,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:33:33,167 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:33:33,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/bitvector/num_conversion_2.c [2021-10-11 00:33:33,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/data/dfc2ecfd6/d988def0f8d24d1884710776ab5c0172/FLAGc29233822 [2021-10-11 00:33:33,788 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:33:33,789 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/sv-benchmarks/c/bitvector/num_conversion_2.c [2021-10-11 00:33:33,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/data/dfc2ecfd6/d988def0f8d24d1884710776ab5c0172/FLAGc29233822 [2021-10-11 00:33:34,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/data/dfc2ecfd6/d988def0f8d24d1884710776ab5c0172 [2021-10-11 00:33:34,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:33:34,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:33:34,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:34,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:33:34,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:33:34,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f94846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34, skipping insertion in model container [2021-10-11 00:33:34,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:33:34,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:33:34,367 WARN L226 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_7480967c-5a82-47d7-bdcc-1a68c26dd19c/sv-benchmarks/c/bitvector/num_conversion_2.c[380,393] [2021-10-11 00:33:34,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:34,388 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:33:34,400 WARN L226 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_7480967c-5a82-47d7-bdcc-1a68c26dd19c/sv-benchmarks/c/bitvector/num_conversion_2.c[380,393] [2021-10-11 00:33:34,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:33:34,422 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:33:34,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34 WrapperNode [2021-10-11 00:33:34,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:33:34,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:34,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:33:34,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:33:34,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:33:34,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:33:34,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:33:34,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:33:34,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... [2021-10-11 00:33:34,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:33:34,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:33:34,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:33:34,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:33:34,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7480967c-5a82-47d7-bdcc-1a68c26dd19c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:33:34,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:33:34,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:33:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:33:34,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:33:34,887 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:33:34,890 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 00:33:34,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:34 BoogieIcfgContainer [2021-10-11 00:33:34,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:33:34,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:33:34,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:33:34,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:33:34,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:33:34" (1/3) ... [2021-10-11 00:33:34,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6831fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:34, skipping insertion in model container [2021-10-11 00:33:34,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:33:34" (2/3) ... [2021-10-11 00:33:34,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6831fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:33:34, skipping insertion in model container [2021-10-11 00:33:34,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:34" (3/3) ... [2021-10-11 00:33:34,906 INFO L111 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2021-10-11 00:33:34,922 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:33:34,925 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-10-11 00:33:34,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-11 00:33:34,981 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:33:34,983 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:33:34,984 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:33:34,984 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:33:34,984 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:33:34,984 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:33:34,985 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:33:34,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:33:35,004 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2021-10-11 00:33:35,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:33:35,010 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:33:35,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:33:35,012 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:33:35,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:33:35,020 INFO L82 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-10-11 00:33:35,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:33:35,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120761215] [2021-10-11 00:33:35,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:33:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:35,177 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:33:35,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:33:35,242 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:33:35,243 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:33:35,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:33:35,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:33:35 BoogieIcfgContainer [2021-10-11 00:33:35,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:33:35,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:33:35,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:33:35,274 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:33:35,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:33:34" (3/4) ... [2021-10-11 00:33:35,286 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:33:35,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:33:35,291 INFO L168 Benchmark]: Toolchain (without parser) took 1114.12 ms. Allocated memory is still 142.6 MB. Free memory was 83.6 MB in the beginning and 89.4 MB in the end (delta: -5.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:35,293 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 142.6 MB. Free memory was 99.6 MB in the beginning and 99.6 MB in the end (delta: 86.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:35,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.06 ms. Allocated memory is still 142.6 MB. Free memory was 83.4 MB in the beginning and 117.9 MB in the end (delta: -34.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:35,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.74 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 116.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:35,299 INFO L168 Benchmark]: Boogie Preprocessor took 22.65 ms. Allocated memory is still 142.6 MB. Free memory was 116.2 MB in the beginning and 115.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:35,300 INFO L168 Benchmark]: RCFGBuilder took 369.07 ms. Allocated memory is still 142.6 MB. Free memory was 114.9 MB in the beginning and 102.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:35,301 INFO L168 Benchmark]: TraceAbstraction took 374.73 ms. Allocated memory is still 142.6 MB. Free memory was 101.7 MB in the beginning and 89.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:33:35,302 INFO L168 Benchmark]: Witness Printer took 12.92 ms. Allocated memory is still 142.6 MB. Free memory was 89.8 MB in the beginning and 89.4 MB in the end (delta: 307.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:33:35,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 142.6 MB. Free memory was 99.6 MB in the beginning and 99.6 MB in the end (delta: 86.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.06 ms. Allocated memory is still 142.6 MB. Free memory was 83.4 MB in the beginning and 117.9 MB in the end (delta: -34.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.74 ms. Allocated memory is still 142.6 MB. Free memory was 117.6 MB in the beginning and 116.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.65 ms. Allocated memory is still 142.6 MB. Free memory was 116.2 MB in the beginning and 115.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 369.07 ms. Allocated memory is still 142.6 MB. Free memory was 114.9 MB in the beginning and 102.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 374.73 ms. Allocated memory is still 142.6 MB. Free memory was 101.7 MB in the beginning and 89.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 12.92 ms. Allocated memory is still 142.6 MB. Free memory was 89.8 MB in the beginning and 89.4 MB in the end (delta: 307.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 23. Possible FailurePath: [L16] unsigned char x = __VERIFIER_nondet_uchar(); [L17] unsigned char y; [L18] unsigned char c; [L20] y = 0 [L21] c = 0 [L22] COND TRUE c < (unsigned char)8 [L23] ((unsigned char)1) << c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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 Received shutdown request...