./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension2-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer --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 77ef69d44c8f77452502c4ac7c66fdbfd4bfb2a1 ...................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:04:10,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:04:10,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:04:10,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:04:10,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:04:10,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:04:10,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:04:10,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:04:10,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:04:10,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:04:10,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:04:10,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:04:10,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:04:10,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:04:10,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:04:10,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:04:10,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:04:10,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:04:10,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:04:10,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:04:10,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:04:10,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:04:10,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:04:10,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:04:10,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:04:10,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:04:10,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:04:10,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:04:10,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:04:10,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:04:10,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:04:10,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:04:10,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:04:10,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:04:10,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:04:10,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:04:10,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:04:10,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:04:10,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:04:10,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:04:10,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:04:10,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:04:10,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:04:10,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:04:10,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:04:10,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:04:10,605 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:04:10,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:04:10,606 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:04:10,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:04:10,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:04:10,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:04:10,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:04:10,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:04:10,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:04:10,610 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:04:10,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:04:10,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:04:10,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:04:10,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:04:10,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:04:10,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:04:10,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:04:10,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:04:10,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:04:10,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:04:10,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:04:10,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:04:10,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:04:10,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:04:10,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:04:10,616 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-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ef69d44c8f77452502c4ac7c66fdbfd4bfb2a1 [2020-12-01 15:04:10,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:04:11,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:04:11,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:04:11,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:04:11,045 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:04:11,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/../../sv-benchmarks/c/bitvector-regression/signextension2-2.c [2020-12-01 15:04:11,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/data/5f6279ae7/272dfb0a43a7478b96712984aadbbdb3/FLAG9486eab41 [2020-12-01 15:04:11,762 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:04:11,763 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/sv-benchmarks/c/bitvector-regression/signextension2-2.c [2020-12-01 15:04:11,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/data/5f6279ae7/272dfb0a43a7478b96712984aadbbdb3/FLAG9486eab41 [2020-12-01 15:04:12,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/data/5f6279ae7/272dfb0a43a7478b96712984aadbbdb3 [2020-12-01 15:04:12,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:04:12,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:04:12,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:04:12,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:04:12,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:04:12,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50557d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12, skipping insertion in model container [2020-12-01 15:04:12,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:04:12,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:04:12,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:04:12,323 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:04:12,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:04:12,372 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:04:12,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12 WrapperNode [2020-12-01 15:04:12,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:04:12,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:04:12,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:04:12,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:04:12,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:04:12,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:04:12,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:04:12,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:04:12,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... [2020-12-01 15:04:12,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:04:12,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:04:12,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:04:12,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:04:12,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/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 [2020-12-01 15:04:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:04:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:04:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:04:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:04:12,880 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:04:12,880 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 15:04:12,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:04:12 BoogieIcfgContainer [2020-12-01 15:04:12,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:04:12,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:04:12,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:04:12,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:04:12,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:04:12" (1/3) ... [2020-12-01 15:04:12,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e59877d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:04:12, skipping insertion in model container [2020-12-01 15:04:12,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:04:12" (2/3) ... [2020-12-01 15:04:12,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e59877d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:04:12, skipping insertion in model container [2020-12-01 15:04:12,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:04:12" (3/3) ... [2020-12-01 15:04:12,912 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension2-2.c [2020-12-01 15:04:12,928 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:04:12,931 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:04:12,942 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:04:12,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:04:12,970 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:04:12,971 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:04:12,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:04:12,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:04:12,971 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:04:12,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:04:12,971 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:04:12,985 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-01 15:04:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:04:12,992 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:04:12,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:04:12,993 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:04:13,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:04:13,001 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-12-01 15:04:13,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:04:13,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735158742] [2020-12-01 15:04:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:04:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:04:13,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:04:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:04:13,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:04:13,225 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:04:13,226 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:04:13,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:04:13,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:04:13 BoogieIcfgContainer [2020-12-01 15:04:13,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:04:13,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:04:13,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:04:13,271 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:04:13,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:04:12" (3/4) ... [2020-12-01 15:04:13,275 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:04:13,322 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b84c0738-a682-46e4-a7ee-53c3b945844c/bin/uautomizer/witness.graphml [2020-12-01 15:04:13,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:04:13,325 INFO L168 Benchmark]: Toolchain (without parser) took 1250.50 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 68.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:04:13,326 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 119.5 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:04:13,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.22 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 95.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:04:13,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.10 ms. Allocated memory is still 119.5 MB. Free memory was 95.3 MB in the beginning and 94.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:04:13,329 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 ms. Allocated memory is still 119.5 MB. Free memory was 94.1 MB in the beginning and 93.2 MB in the end (delta: 929.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:04:13,330 INFO L168 Benchmark]: RCFGBuilder took 438.33 ms. Allocated memory is still 119.5 MB. Free memory was 93.2 MB in the beginning and 82.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:04:13,331 INFO L168 Benchmark]: TraceAbstraction took 385.54 ms. Allocated memory is still 119.5 MB. Free memory was 82.3 MB in the beginning and 70.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:04:13,332 INFO L168 Benchmark]: Witness Printer took 51.10 ms. Allocated memory is still 119.5 MB. Free memory was 70.1 MB in the beginning and 68.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:04:13,338 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 119.5 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.22 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 95.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.10 ms. Allocated memory is still 119.5 MB. Free memory was 95.3 MB in the beginning and 94.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.90 ms. Allocated memory is still 119.5 MB. Free memory was 94.1 MB in the beginning and 93.2 MB in the end (delta: 929.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 438.33 ms. Allocated memory is still 119.5 MB. Free memory was 93.2 MB in the beginning and 82.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 385.54 ms. Allocated memory is still 119.5 MB. Free memory was 82.3 MB in the beginning and 70.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 51.10 ms. Allocated memory is still 119.5 MB. Free memory was 70.1 MB in the beginning and 68.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] unsigned int allOne = -1; [L8] int castToInt = allOne; [L9] long castToLong = allOne; [L10] long castToLong2 = castToInt; [L11] unsigned long castToULong = allOne; [L13-L14] COND TRUE castToInt == -1 && castToLong == 4294967295UL && castToLong2 == -1 && castToULong == 4294967295UL [L3] __assert_fail("0", "signextension2-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 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=9occurred 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 proved your program to be incorrect! Received shutdown request...