./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI --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_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI --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 0.2.0-7b2dab5 [2021-10-11 02:25:08,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:08,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:08,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:08,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:08,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:08,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:08,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:08,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:08,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:08,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:08,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:08,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:08,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:08,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:08,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:08,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:08,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:08,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:08,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:08,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:08,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:08,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:08,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:08,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:08,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:08,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:08,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:08,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:08,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:08,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:08,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:08,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:08,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:08,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:08,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:08,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:08,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:08,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:08,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:08,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:08,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:08,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:08,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:08,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:08,226 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:08,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:08,227 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:08,227 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:08,227 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:08,233 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:08,234 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:08,235 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:08,235 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:08,235 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:08,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:08,236 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:08,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:08,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:08,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:08,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:08,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:08,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:08,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:08,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:08,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:08,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:08,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:08,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:08,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:08,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:08,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:08,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:08,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:08,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:08,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:08,242 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:08,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:08,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:08,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:08,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:08,243 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_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c59cd64cbdab762f2e01ef0d03122497382232 [2021-10-11 02:25:08,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:08,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:08,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:08,535 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:08,539 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:08,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-11 02:25:08,601 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/ab396c4bb/1b4bd3373a2844bcb6dfa7d977b0efbf/FLAG27a8cdcca [2021-10-11 02:25:09,004 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:09,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-11 02:25:09,010 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/ab396c4bb/1b4bd3373a2844bcb6dfa7d977b0efbf/FLAG27a8cdcca [2021-10-11 02:25:09,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/ab396c4bb/1b4bd3373a2844bcb6dfa7d977b0efbf [2021-10-11 02:25:09,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:09,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:09,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:09,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:09,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:09,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a48a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09, skipping insertion in model container [2021-10-11 02:25:09,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:09,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:09,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-11 02:25:09,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:09,623 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:09,632 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-11 02:25:09,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:09,643 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:09,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09 WrapperNode [2021-10-11 02:25:09,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:09,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:09,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:09,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:09,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:09,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:09,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:09,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:09,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... [2021-10-11 02:25:09,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:09,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:09,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:09,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:09,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:09,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:09,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:09,932 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:25:09,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:09 BoogieIcfgContainer [2021-10-11 02:25:09,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:09,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:09,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:09,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:09,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:09" (1/3) ... [2021-10-11 02:25:09,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7150946e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:09, skipping insertion in model container [2021-10-11 02:25:09,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:09" (2/3) ... [2021-10-11 02:25:09,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7150946e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:09, skipping insertion in model container [2021-10-11 02:25:09,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:09" (3/3) ... [2021-10-11 02:25:09,950 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-10-11 02:25:09,964 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:09,966 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:09,976 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:09,999 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:09,999 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:09,999 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:10,000 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:10,000 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:10,000 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:10,000 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:10,000 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:25:10,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:25:10,017 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:10,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:25:10,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:10,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:10,024 INFO L82 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2021-10-11 02:25:10,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:10,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377385555] [2021-10-11 02:25:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:10,169 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:10,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:10,220 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:25:10,223 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:25:10,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:10,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:10 BoogieIcfgContainer [2021-10-11 02:25:10,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:10,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:10,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:10,254 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:10,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:09" (3/4) ... [2021-10-11 02:25:10,267 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:25:10,274 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:10,277 INFO L168 Benchmark]: Toolchain (without parser) took 859.26 ms. Allocated memory is still 98.6 MB. Free memory was 62.1 MB in the beginning and 49.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,279 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:10,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.52 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 76.0 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.06 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 74.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,284 INFO L168 Benchmark]: Boogie Preprocessor took 17.53 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.9 MB in the end (delta: 838.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:10,286 INFO L168 Benchmark]: RCFGBuilder took 244.41 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 62.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,287 INFO L168 Benchmark]: TraceAbstraction took 310.21 ms. Allocated memory is still 98.6 MB. Free memory was 61.8 MB in the beginning and 49.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,288 INFO L168 Benchmark]: Witness Printer took 21.81 ms. Allocated memory is still 98.6 MB. Free memory was 49.6 MB in the beginning and 49.2 MB in the end (delta: 411.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:10,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 98.6 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 223.52 ms. Allocated memory is still 98.6 MB. Free memory was 61.9 MB in the beginning and 76.0 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.06 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 74.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.53 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.9 MB in the end (delta: 838.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 244.41 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 62.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 310.21 ms. Allocated memory is still 98.6 MB. Free memory was 61.8 MB in the beginning and 49.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 21.81 ms. Allocated memory is still 98.6 MB. Free memory was 49.6 MB in the beginning and 49.2 MB in the end (delta: 411.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. 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 0.2.0-7b2dab5 [2021-10-11 02:25:12,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:12,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:12,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:12,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:12,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:12,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:12,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:12,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:12,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:12,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:12,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:12,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:12,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:12,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:12,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:12,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:12,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:12,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:12,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:12,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:12,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:12,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:12,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:12,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:12,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:12,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:12,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:12,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:12,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:12,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:12,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:12,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:12,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:12,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:12,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:12,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:12,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:12,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:12,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:12,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:12,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:25:12,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:12,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:12,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:12,770 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:12,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:12,770 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:12,770 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:12,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:12,771 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:12,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:12,772 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:12,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:12,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:12,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:12,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:12,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:12,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:12,773 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:25:12,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:25:12,773 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:12,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:12,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:12,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:12,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:12,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:25:12,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:12,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:12,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:12,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:12,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:12,775 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:25:12,776 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:25:12,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:12,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:12,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:12,776 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_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15c59cd64cbdab762f2e01ef0d03122497382232 [2021-10-11 02:25:13,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:13,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:13,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:13,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:13,174 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:13,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-11 02:25:13,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/24ad64ccd/f6f51f60900e44a3a4928039389fa08d/FLAGdc6a53f0d [2021-10-11 02:25:13,696 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:13,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c [2021-10-11 02:25:13,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/24ad64ccd/f6f51f60900e44a3a4928039389fa08d/FLAGdc6a53f0d [2021-10-11 02:25:14,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/data/24ad64ccd/f6f51f60900e44a3a4928039389fa08d [2021-10-11 02:25:14,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:14,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:14,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:14,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:14,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:14,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278a65d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14, skipping insertion in model container [2021-10-11 02:25:14,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:14,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:14,292 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-11 02:25:14,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:14,306 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:14,320 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/sv-benchmarks/c/bitvector-regression/integerpromotion-2.c[423,436] [2021-10-11 02:25:14,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:14,340 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:14,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14 WrapperNode [2021-10-11 02:25:14,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:14,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:14,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:14,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:14,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:14,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:14,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:14,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:14,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:14,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:14,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:14,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:14,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:14,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:25:14,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:14,672 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:14,673 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:25:14,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:14 BoogieIcfgContainer [2021-10-11 02:25:14,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:14,676 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:14,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:14,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:14,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:14" (1/3) ... [2021-10-11 02:25:14,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0276df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:14, skipping insertion in model container [2021-10-11 02:25:14,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14" (2/3) ... [2021-10-11 02:25:14,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0276df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:14, skipping insertion in model container [2021-10-11 02:25:14,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:14" (3/3) ... [2021-10-11 02:25:14,682 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-10-11 02:25:14,696 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:14,699 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:14,709 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:14,734 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:14,734 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:14,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:14,735 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:14,735 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:14,735 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:14,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:14,735 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2021-10-11 02:25:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:25:14,754 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:14,754 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:25:14,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:14,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:14,760 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-10-11 02:25:14,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:14,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238524997] [2021-10-11 02:25:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:14,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:25:14,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:14,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:14,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238524997] [2021-10-11 02:25:14,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:14,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:14,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561644745] [2021-10-11 02:25:14,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:14,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:15,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:15,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:15,008 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2021-10-11 02:25:15,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:15,025 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-10-11 02:25:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:15,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:25:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:15,032 INFO L225 Difference]: With dead ends: 11 [2021-10-11 02:25:15,033 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:15,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:15,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:15,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:15,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:25:15,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:15,066 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:15,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:15,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:15,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:25:15,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:25:15,321 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:25:15,322 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:25:15,322 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:25:15,326 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:25:15,326 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:25:15,327 INFO L258 CegarLoopResult]: At program point L15(lines 5 16) the Hoare annotation is: (= (bvadd ULTIMATE.start_main_~result_8~0 (_ bv6 8)) (_ bv0 8)) [2021-10-11 02:25:15,327 INFO L258 CegarLoopResult]: At program point L10(lines 5 16) the Hoare annotation is: false [2021-10-11 02:25:15,327 INFO L262 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-11 02:25:15,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:15 BoogieIcfgContainer [2021-10-11 02:25:15,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:15,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:15,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:15,349 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:15,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:14" (3/4) ... [2021-10-11 02:25:15,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:15,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 02:25:15,364 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:15,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:15,365 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:15,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f56c55d-15f8-43a9-970c-e2a40cd51ac1/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:15,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:15,401 INFO L168 Benchmark]: Toolchain (without parser) took 1295.94 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.1 MB in the beginning and 38.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,401 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:15,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.33 ms. Allocated memory is still 58.7 MB. Free memory was 36.8 MB in the beginning and 42.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 41.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:15,404 INFO L168 Benchmark]: Boogie Preprocessor took 38.22 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 41.4 MB in the beginning and 55.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,404 INFO L168 Benchmark]: RCFGBuilder took 263.57 ms. Allocated memory is still 71.3 MB. Free memory was 55.1 MB in the beginning and 44.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,405 INFO L168 Benchmark]: TraceAbstraction took 669.96 ms. Allocated memory is still 71.3 MB. Free memory was 44.4 MB in the beginning and 40.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,412 INFO L168 Benchmark]: Witness Printer took 50.84 ms. Allocated memory is still 71.3 MB. Free memory was 40.7 MB in the beginning and 38.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.33 ms. Allocated memory is still 58.7 MB. Free memory was 36.8 MB in the beginning and 42.8 MB in the end (delta: -6.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 41.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.22 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 41.4 MB in the beginning and 55.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 263.57 ms. Allocated memory is still 71.3 MB. Free memory was 55.1 MB in the beginning and 44.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 669.96 ms. Allocated memory is still 71.3 MB. Free memory was 44.4 MB in the beginning and 40.7 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Witness Printer took 50.84 ms. Allocated memory is still 71.3 MB. Free memory was 40.7 MB in the beginning and 38.6 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: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is 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, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, 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, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 2 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...