./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15c59cd64cbdab762f2e01ef0d03122497382232 ............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15c59cd64cbdab762f2e01ef0d03122497382232 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:41:07,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:07,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:07,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:07,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:07,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:07,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:07,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:07,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:07,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:07,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:07,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:07,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:07,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:07,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:07,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:07,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:07,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:07,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:07,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:07,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:07,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:07,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:07,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:07,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:07,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:07,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:07,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:07,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:07,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:07,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:07,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:07,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:07,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:07,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:07,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:07,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:07,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:07,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:07,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:07,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:07,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:41:07,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:07,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:07,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:07,342 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:07,343 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:07,343 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:07,343 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:41:07,343 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:07,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:07,344 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:41:07,344 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:41:07,344 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:07,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:41:07,345 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:41:07,345 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:41:07,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:07,346 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:07,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:41:07,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:07,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:07,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:07,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:07,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:07,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:07,348 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:07,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:07,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:07,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:07,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:07,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:07,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:07,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:07,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:07,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:07,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:07,350 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:41:07,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:41:07,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:07,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:07,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:07,351 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c59cd64cbdab762f2e01ef0d03122497382232 [2020-11-28 07:41:07,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:07,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:07,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:07,614 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:07,614 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:07,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-11-28 07:41:07,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/914b6ab39/913ce82d38bb4fc295ad484642570294/FLAG455644f6a [2020-11-28 07:41:08,130 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:08,130 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-11-28 07:41:08,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/914b6ab39/913ce82d38bb4fc295ad484642570294/FLAG455644f6a [2020-11-28 07:41:08,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/914b6ab39/913ce82d38bb4fc295ad484642570294 [2020-11-28 07:41:08,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:08,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:08,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:08,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:08,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:08,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400125a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08, skipping insertion in model container [2020-11-28 07:41:08,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:08,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:08,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:08,753 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:08,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:08,776 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:08,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08 WrapperNode [2020-11-28 07:41:08,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:08,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:08,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:08,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:08,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:08,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:08,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:08,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:08,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... [2020-11-28 07:41:08,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:08,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:08,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:08,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:08,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/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 [2020-11-28 07:41:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:08,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:41:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:09,212 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:09,212 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:41:09,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:09 BoogieIcfgContainer [2020-11-28 07:41:09,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:09,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:09,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:09,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:09,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:08" (1/3) ... [2020-11-28 07:41:09,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82138f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:09, skipping insertion in model container [2020-11-28 07:41:09,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:08" (2/3) ... [2020-11-28 07:41:09,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82138f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:09, skipping insertion in model container [2020-11-28 07:41:09,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:09" (3/3) ... [2020-11-28 07:41:09,224 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2020-11-28 07:41:09,235 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:09,239 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:41:09,251 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:41:09,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:09,283 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:09,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:09,283 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:09,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:09,298 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:09,298 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:09,298 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:09,320 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-28 07:41:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:41:09,327 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:09,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:41:09,329 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:09,335 INFO L82 PathProgramCache]: Analyzing trace with hash 45331, now seen corresponding path program 1 times [2020-11-28 07:41:09,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:09,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847211361] [2020-11-28 07:41:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:09,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:09,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:09,473 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:41:09,474 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:41:09,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:41:09,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:09 BoogieIcfgContainer [2020-11-28 07:41:09,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:09,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:09,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:09,494 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:09,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:09" (3/4) ... [2020-11-28 07:41:09,498 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:41:09,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:09,501 INFO L168 Benchmark]: Toolchain (without parser) took 979.35 ms. Allocated memory is still 102.8 MB. Free memory was 69.2 MB in the beginning and 53.8 MB in the end (delta: 15.4 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:09,502 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory was 74.9 MB in the beginning and 74.8 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:09,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.14 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 79.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:09,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.57 ms. Allocated memory is still 102.8 MB. Free memory was 79.5 MB in the beginning and 78.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:09,505 INFO L168 Benchmark]: Boogie Preprocessor took 41.16 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 77.4 MB in the end (delta: 962.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:09,505 INFO L168 Benchmark]: RCFGBuilder took 345.66 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 65.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:09,506 INFO L168 Benchmark]: TraceAbstraction took 277.08 ms. Allocated memory is still 102.8 MB. Free memory was 65.4 MB in the beginning and 53.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:09,507 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 102.8 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:09,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory was 74.9 MB in the beginning and 74.8 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.14 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 79.5 MB in the end (delta: -10.4 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.57 ms. Allocated memory is still 102.8 MB. Free memory was 79.5 MB in the beginning and 78.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.16 ms. Allocated memory is still 102.8 MB. Free memory was 78.3 MB in the beginning and 77.4 MB in the end (delta: 962.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 345.66 ms. Allocated memory is still 102.8 MB. Free memory was 77.4 MB in the beginning and 65.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 277.08 ms. Allocated memory is still 102.8 MB. Free memory was 65.4 MB in the beginning and 53.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 102.8 MB. Free memory is still 53.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; [L9] COND TRUE result_8 != 0xfa [L3] __assert_fail("0", "integerpromotion-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:41:11,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:11,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:11,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:11,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:11,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:11,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:11,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:11,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:11,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:11,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:11,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:11,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:11,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:11,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:11,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:11,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:11,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:12,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:12,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:12,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:12,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:12,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:12,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:12,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:12,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:12,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:12,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:12,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:12,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:12,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:12,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:12,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:12,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:12,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:12,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:12,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:12,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:12,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:12,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:12,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:12,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:41:12,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:12,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:12,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:12,086 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:12,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:12,086 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:12,087 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:12,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:12,087 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:12,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:12,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:12,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:12,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:12,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:12,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:12,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:12,090 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:12,090 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:41:12,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:41:12,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:12,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:12,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:12,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:12,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:12,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:41:12,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:12,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:12,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:12,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:12,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:12,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:12,093 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:41:12,093 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:41:12,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:12,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:12,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:12,094 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c59cd64cbdab762f2e01ef0d03122497382232 [2020-11-28 07:41:12,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:12,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:12,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:12,550 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:12,553 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:12,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-11-28 07:41:12,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/4fbf1807c/7f51b016bff64e08b4fd2634e0ce1d3b/FLAG4d1956636 [2020-11-28 07:41:13,214 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:13,214 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2020-11-28 07:41:13,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/4fbf1807c/7f51b016bff64e08b4fd2634e0ce1d3b/FLAG4d1956636 [2020-11-28 07:41:13,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/data/4fbf1807c/7f51b016bff64e08b4fd2634e0ce1d3b [2020-11-28 07:41:13,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:13,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:13,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:13,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:13,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:13,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5538ef76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13, skipping insertion in model container [2020-11-28 07:41:13,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:13,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:13,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:13,793 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:13,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:13,821 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:13,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13 WrapperNode [2020-11-28 07:41:13,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:13,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:13,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:13,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:13,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:13,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:13,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:13,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:13,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... [2020-11-28 07:41:13,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:13,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:13,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:13,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:13,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/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 [2020-11-28 07:41:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:13,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:41:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:14,148 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:14,149 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:41:14,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:14 BoogieIcfgContainer [2020-11-28 07:41:14,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:14,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:14,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:14,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:14,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:13" (1/3) ... [2020-11-28 07:41:14,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a852437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:14, skipping insertion in model container [2020-11-28 07:41:14,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:13" (2/3) ... [2020-11-28 07:41:14,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a852437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:14, skipping insertion in model container [2020-11-28 07:41:14,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:14" (3/3) ... [2020-11-28 07:41:14,159 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2020-11-28 07:41:14,170 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:14,174 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:41:14,186 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:41:14,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:14,209 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:14,209 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:14,210 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:14,210 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:14,210 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:14,210 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:14,210 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 07:41:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:41:14,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:14,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:41:14,227 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:14,233 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-28 07:41:14,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:14,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681173605] [2020-11-28 07:41:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:14,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:41:14,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:14,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:14,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681173605] [2020-11-28 07:41:14,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:14,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 07:41:14,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113372976] [2020-11-28 07:41:14,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:14,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:14,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:14,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:14,522 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-11-28 07:41:14,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:14,550 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-28 07:41:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:14,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 07:41:14,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:14,560 INFO L225 Difference]: With dead ends: 12 [2020-11-28 07:41:14,560 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:41:14,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:41:14,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:41:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:41:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:41:14,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 07:41:14,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:14,590 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:41:14,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:41:14,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:41:14,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:41:14,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:41:14,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:41:14,871 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:41:14,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:41:14,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:41:14,871 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:41:14,872 INFO L270 CegarLoopResult]: At program point L15(lines 5 16) the Hoare annotation is: (= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8)) [2020-11-28 07:41:14,872 INFO L270 CegarLoopResult]: At program point L10(lines 5 16) the Hoare annotation is: false [2020-11-28 07:41:14,872 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-11-28 07:41:14,872 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:41:14,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:14 BoogieIcfgContainer [2020-11-28 07:41:14,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:14,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:14,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:14,894 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:14,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:14" (3/4) ... [2020-11-28 07:41:14,899 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:41:14,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 07:41:14,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:41:14,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:41:14,915 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:41:14,940 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_96a39d41-1e2f-43fd-bdf2-6ca2d58c3285/bin/utaipan/witness.graphml [2020-11-28 07:41:14,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:14,942 INFO L168 Benchmark]: Toolchain (without parser) took 1330.57 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.3 MB in the beginning and 30.1 MB in the end (delta: -780.9 kB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:14,943 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:14,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.70 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 19.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:14,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.08 ms. Allocated memory is still 52.4 MB. Free memory was 19.8 MB in the beginning and 36.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:14,945 INFO L168 Benchmark]: Boogie Preprocessor took 26.05 ms. Allocated memory is still 52.4 MB. Free memory was 36.1 MB in the beginning and 35.2 MB in the end (delta: 949.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:14,946 INFO L168 Benchmark]: RCFGBuilder took 261.26 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 25.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:14,947 INFO L168 Benchmark]: TraceAbstraction took 740.41 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 24.8 MB in the beginning and 32.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:14,947 INFO L168 Benchmark]: Witness Printer took 47.00 ms. Allocated memory is still 65.0 MB. Free memory was 32.4 MB in the beginning and 30.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:14,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 52.4 MB. Free memory was 34.3 MB in the beginning and 34.2 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 209.70 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 19.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.08 ms. Allocated memory is still 52.4 MB. Free memory was 19.8 MB in the beginning and 36.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.05 ms. Allocated memory is still 52.4 MB. Free memory was 36.1 MB in the beginning and 35.2 MB in the end (delta: 949.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 261.26 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 25.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 740.41 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 24.8 MB in the beginning and 32.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Witness Printer took 47.00 ms. Allocated memory is still 65.0 MB. Free memory was 32.4 MB in the beginning and 30.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ~bvadd64(result_8, 6bv8) == 0bv8 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...