./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw --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 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw --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 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:16:01,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:16:01,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:16:02,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:16:02,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:16:02,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:16:02,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:16:02,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:16:02,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:16:02,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:16:02,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:16:02,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:16:02,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:16:02,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:16:02,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:16:02,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:16:02,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:16:02,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:16:02,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:16:02,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:16:02,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:16:02,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:16:02,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:16:02,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:16:02,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:16:02,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:16:02,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:16:02,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:16:02,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:16:02,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:16:02,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:16:02,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:16:02,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:16:02,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:16:02,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:16:02,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:16:02,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:16:02,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:16:02,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:16:02,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:16:02,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:16:02,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:16:02,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:16:02,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:16:02,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:16:02,143 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:16:02,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:16:02,144 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:16:02,144 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:16:02,144 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:16:02,144 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:16:02,144 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:16:02,145 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:16:02,145 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:16:02,145 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:16:02,145 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:16:02,145 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:16:02,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:16:02,146 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:16:02,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:16:02,147 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:16:02,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:16:02,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:16:02,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:16:02,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:16:02,148 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:16:02,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:16:02,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:16:02,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:16:02,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:16:02,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:16:02,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:16:02,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:02,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:16:02,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:16:02,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:16:02,150 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:16:02,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:16:02,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:16:02,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:16:02,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:16:02,151 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_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef [2021-10-20 05:16:02,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:16:02,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:16:02,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:16:02,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:16:02,503 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:16:02,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-20 05:16:02,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/356533799/2c864d2cc25945a2bc0f9b6a92088283/FLAG75af7fdf2 [2021-10-20 05:16:03,166 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:16:03,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-20 05:16:03,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/356533799/2c864d2cc25945a2bc0f9b6a92088283/FLAG75af7fdf2 [2021-10-20 05:16:03,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/356533799/2c864d2cc25945a2bc0f9b6a92088283 [2021-10-20 05:16:03,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:16:03,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:16:03,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:03,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:16:03,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:16:03,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516be630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03, skipping insertion in model container [2021-10-20 05:16:03,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:16:03,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:16:03,729 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-20 05:16:03,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:03,762 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:16:03,775 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-20 05:16:03,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:03,789 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:16:03,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03 WrapperNode [2021-10-20 05:16:03,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:03,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:03,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:16:03,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:16:03,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:03,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:16:03,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:16:03,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:16:03,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:16:03,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:16:03,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:16:03,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:16:03,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (1/1) ... [2021-10-20 05:16:03,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:03,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:16:03,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:16:03,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:16:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:16:03,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:16:03,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:16:03,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:16:04,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:16:04,171 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-20 05:16:04,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:04 BoogieIcfgContainer [2021-10-20 05:16:04,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:16:04,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:16:04,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:16:04,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:16:04,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:16:03" (1/3) ... [2021-10-20 05:16:04,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6882e308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:04, skipping insertion in model container [2021-10-20 05:16:04,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:03" (2/3) ... [2021-10-20 05:16:04,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6882e308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:04, skipping insertion in model container [2021-10-20 05:16:04,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:04" (3/3) ... [2021-10-20 05:16:04,195 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-10-20 05:16:04,202 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:16:04,202 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:16:04,266 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:16:04,275 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:16:04,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:16:04,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:04,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-20 05:16:04,296 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:04,297 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-20 05:16:04,297 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:16:04,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:04,305 INFO L82 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2021-10-20 05:16:04,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:16:04,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428088752] [2021-10-20 05:16:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:04,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:16:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:16:04,464 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:16:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:16:04,536 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 05:16:04,540 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:16:04,541 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:16:04,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:16:04,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:16:04,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:16:04 BoogieIcfgContainer [2021-10-20 05:16:04,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:16:04,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:16:04,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:16:04,577 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:16:04,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:04" (3/4) ... [2021-10-20 05:16:04,582 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 05:16:04,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:16:04,587 INFO L168 Benchmark]: Toolchain (without parser) took 1047.13 ms. Allocated memory is still 92.3 MB. Free memory was 52.6 MB in the beginning and 44.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:04,588 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:04,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.92 ms. Allocated memory is still 92.3 MB. Free memory was 52.4 MB in the beginning and 69.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:04,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.18 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:04,593 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 67.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:04,594 INFO L168 Benchmark]: RCFGBuilder took 332.86 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 57.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:04,596 INFO L168 Benchmark]: TraceAbstraction took 391.85 ms. Allocated memory is still 92.3 MB. Free memory was 57.2 MB in the beginning and 44.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:04,603 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 92.3 MB. Free memory was 44.6 MB in the beginning and 44.4 MB in the end (delta: 229.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:04,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 68.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.92 ms. Allocated memory is still 92.3 MB. Free memory was 52.4 MB in the beginning and 69.5 MB in the end (delta: -17.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.18 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 67.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 332.86 ms. Allocated memory is still 92.3 MB. Free memory was 67.1 MB in the beginning and 57.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 391.85 ms. Allocated memory is still 92.3 MB. Free memory was 57.2 MB in the beginning and 44.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.40 ms. Allocated memory is still 92.3 MB. Free memory was 44.6 MB in the beginning and 44.4 MB in the end (delta: 229.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; [L8] unsigned char result_8 = ( ~port ) >> 4; [L9] COND TRUE result_8 != 0xfa [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 284.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.4ms SsaConstructionTime, 53.9ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-10-20 05:16:04,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:16:07,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:16:07,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:16:07,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:16:07,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:16:07,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:16:07,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:16:07,199 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:16:07,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:16:07,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:16:07,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:16:07,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:16:07,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:16:07,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:16:07,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:16:07,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:16:07,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:16:07,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:16:07,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:16:07,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:16:07,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:16:07,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:16:07,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:16:07,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:16:07,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:16:07,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:16:07,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:16:07,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:16:07,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:16:07,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:16:07,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:16:07,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:16:07,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:16:07,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:16:07,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:16:07,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:16:07,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:16:07,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:16:07,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:16:07,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:16:07,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:16:07,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:16:07,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:16:07,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:16:07,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:16:07,315 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:16:07,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:16:07,315 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:16:07,316 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:16:07,316 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:16:07,316 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:16:07,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:16:07,319 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:16:07,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:16:07,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:16:07,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:16:07,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:16:07,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:16:07,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:16:07,321 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:16:07,322 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:16:07,322 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:16:07,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:16:07,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:16:07,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:16:07,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:16:07,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:16:07,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:16:07,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:07,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:16:07,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:16:07,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:16:07,325 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:16:07,325 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:16:07,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:16:07,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:16:07,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:16:07,327 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07f72950731c5de2ed23b9c920d3d358df8c5bf808c378b846524de814f135ef [2021-10-20 05:16:07,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:16:07,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:16:07,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:16:07,853 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:16:07,853 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:16:07,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-20 05:16:07,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/38b83f839/f3a21ce6243b407683620720b3fae022/FLAGabd792472 [2021-10-20 05:16:08,528 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:16:08,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-20 05:16:08,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/38b83f839/f3a21ce6243b407683620720b3fae022/FLAGabd792472 [2021-10-20 05:16:08,888 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/data/38b83f839/f3a21ce6243b407683620720b3fae022 [2021-10-20 05:16:08,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:16:08,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:16:08,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:08,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:16:08,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:16:08,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:08" (1/1) ... [2021-10-20 05:16:08,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65650b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:08, skipping insertion in model container [2021-10-20 05:16:08,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:08" (1/1) ... [2021-10-20 05:16:08,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:16:08,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:16:09,110 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-20 05:16:09,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:09,125 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:16:09,138 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-20 05:16:09,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:09,153 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:16:09,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09 WrapperNode [2021-10-20 05:16:09,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:09,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:09,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:16:09,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:16:09,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:09,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:16:09,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:16:09,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:16:09,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:16:09,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:16:09,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:16:09,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:16:09,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (1/1) ... [2021-10-20 05:16:09,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:09,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:16:09,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:16:09,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:16:09,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:16:09,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:16:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:16:09,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:16:09,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:16:09,534 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-20 05:16:09,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:09 BoogieIcfgContainer [2021-10-20 05:16:09,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:16:09,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:16:09,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:16:09,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:16:09,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:16:08" (1/3) ... [2021-10-20 05:16:09,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab8b710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:09, skipping insertion in model container [2021-10-20 05:16:09,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:09" (2/3) ... [2021-10-20 05:16:09,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab8b710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:09, skipping insertion in model container [2021-10-20 05:16:09,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:09" (3/3) ... [2021-10-20 05:16:09,560 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-10-20 05:16:09,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:16:09,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:16:09,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:16:09,622 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:16:09,622 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:16:09,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:09,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:16:09,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:09,640 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:16:09,640 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:16:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:09,646 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-20 05:16:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:16:09,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143765571] [2021-10-20 05:16:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:09,659 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:16:09,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:16:09,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:16:09,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:16:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:16:09,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-20 05:16:09,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:16:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:09,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:16:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:09,877 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:16:09,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143765571] [2021-10-20 05:16:09,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143765571] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:16:09,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:16:09,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:16:09,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953640991] [2021-10-20 05:16:09,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:16:09,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:16:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:16:09,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:16:09,901 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:09,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:16:09,923 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-20 05:16:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:16:09,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-20 05:16:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:16:09,934 INFO L225 Difference]: With dead ends: 11 [2021-10-20 05:16:09,934 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:16:09,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:16:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:16:09,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:16:09,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:16:09,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-20 05:16:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:16:09,961 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:16:09,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:16:09,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:16:09,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:16:09,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-20 05:16:10,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:16:10,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 05:16:10,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:16:10,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:16:10,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 05:16:10,224 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-20 05:16:10,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 05:16:10,224 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-20 05:16:10,225 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-20 05:16:10,225 INFO L853 garLoopResultBuilder]: At program point L15(lines 5 16) the Hoare annotation is: (= (bvadd (_ bv6 8) ULTIMATE.start_main_~result_8~0) (_ bv0 8)) [2021-10-20 05:16:10,225 INFO L853 garLoopResultBuilder]: At program point L10(lines 5 16) the Hoare annotation is: false [2021-10-20 05:16:10,226 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-20 05:16:10,230 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:16:10,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:16:10 BoogieIcfgContainer [2021-10-20 05:16:10,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:16:10,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:16:10,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:16:10,243 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:16:10,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:09" (3/4) ... [2021-10-20 05:16:10,246 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:16:10,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-20 05:16:10,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-20 05:16:10,257 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:16:10,257 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:16:10,286 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:16:10,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:16:10,288 INFO L168 Benchmark]: Toolchain (without parser) took 1392.40 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 47.7 MB in the beginning and 64.5 MB in the end (delta: -16.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:10,289 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 67.1 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:10,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.92 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 38.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:10,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.36 ms. Allocated memory is still 67.1 MB. Free memory was 38.0 MB in the beginning and 51.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:10,291 INFO L168 Benchmark]: Boogie Preprocessor took 30.06 ms. Allocated memory is still 67.1 MB. Free memory was 51.5 MB in the beginning and 50.8 MB in the end (delta: 769.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:10,292 INFO L168 Benchmark]: RCFGBuilder took 262.80 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 42.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:10,293 INFO L168 Benchmark]: TraceAbstraction took 694.98 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 41.6 MB in the beginning and 67.1 MB in the end (delta: -25.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:10,293 INFO L168 Benchmark]: Witness Printer took 44.11 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 64.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:10,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 67.1 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.92 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 38.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.36 ms. Allocated memory is still 67.1 MB. Free memory was 38.0 MB in the beginning and 51.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.06 ms. Allocated memory is still 67.1 MB. Free memory was 51.5 MB in the beginning and 50.8 MB in the end (delta: 769.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 262.80 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 42.0 MB in the end (delta: 8.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 694.98 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 41.6 MB in the beginning and 67.1 MB in the end (delta: -25.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 44.11 ms. Allocated memory is still 96.5 MB. Free memory was 66.6 MB in the beginning and 64.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 616.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.4ms, AutomataDifference: 51.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 47.7ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 37.4ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.3ms SsaConstructionTime, 23.4ms SatisfiabilityAnalysisTime, 150.7ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ~bvadd64(6bv8, result_8) == 0bv8 RESULT: Ultimate proved your program to be correct! [2021-10-20 05:16:10,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa958697-1ef8-4729-ad03-bd3491ae2496/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...