./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs --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 0d2e2e25521cd2556b84d97e037726aee519fbda .............................................................................................................................................................................................................................................................................................................................. 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_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs --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 0d2e2e25521cd2556b84d97e037726aee519fbda ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:29:32,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:29:32,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:29:32,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:29:32,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:29:32,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:29:32,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:29:32,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:29:32,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:29:32,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:29:32,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:29:32,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:29:32,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:29:32,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:29:32,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:29:32,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:29:32,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:29:32,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:29:32,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:29:32,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:29:32,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:29:32,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:29:32,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:29:32,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:29:32,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:29:32,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:29:32,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:29:32,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:29:32,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:29:32,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:29:32,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:29:32,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:29:32,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:29:32,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:29:32,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:29:32,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:29:32,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:29:32,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:29:32,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:29:32,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:29:32,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:29:32,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:29:32,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:29:32,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:29:32,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:29:32,302 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:29:32,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:29:32,302 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:29:32,302 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:29:32,302 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:29:32,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:29:32,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:29:32,303 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:29:32,303 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:29:32,304 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:29:32,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:29:32,304 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:29:32,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:29:32,305 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:29:32,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:29:32,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:29:32,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:29:32,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:29:32,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:29:32,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:29:32,307 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:29:32,307 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:29:32,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:29:32,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:29:32,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:29:32,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:29:32,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:29:32,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:29:32,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:29:32,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:29:32,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:29:32,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:29:32,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:29:32,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:29:32,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:29:32,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:29:32,310 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_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d2e2e25521cd2556b84d97e037726aee519fbda [2021-10-16 02:29:32,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:29:32,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:29:32,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:29:32,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:29:32,576 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:29:32,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-16 02:29:32,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/6164019d8/89c6e26e99494b8aa18799bf5bf04aa8/FLAG9e9fbadf7 [2021-10-16 02:29:33,090 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:29:33,091 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-16 02:29:33,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/6164019d8/89c6e26e99494b8aa18799bf5bf04aa8/FLAG9e9fbadf7 [2021-10-16 02:29:33,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/6164019d8/89c6e26e99494b8aa18799bf5bf04aa8 [2021-10-16 02:29:33,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:29:33,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:29:33,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:29:33,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:29:33,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:29:33,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6e397b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33, skipping insertion in model container [2021-10-16 02:29:33,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:29:33,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:29:33,394 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_89b79b90-84b4-4f6d-afcf-646611a62438/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-16 02:29:33,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:29:33,403 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:29:33,438 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_89b79b90-84b4-4f6d-afcf-646611a62438/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-16 02:29:33,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:29:33,453 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:29:33,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33 WrapperNode [2021-10-16 02:29:33,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:29:33,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:29:33,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:29:33,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:29:33,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:29:33,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:29:33,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:29:33,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:29:33,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:29:33,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:29:33,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:29:33,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:29:33,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (1/1) ... [2021-10-16 02:29:33,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:29:33,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:29:33,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:29:33,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:29:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:29:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:29:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:29:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:29:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:29:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:29:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:29:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:29:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:29:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:29:34,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:29:34,193 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-16 02:29:34,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:34 BoogieIcfgContainer [2021-10-16 02:29:34,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:29:34,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:29:34,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:29:34,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:29:34,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:33" (1/3) ... [2021-10-16 02:29:34,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1364bf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:34, skipping insertion in model container [2021-10-16 02:29:34,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:33" (2/3) ... [2021-10-16 02:29:34,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1364bf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:34, skipping insertion in model container [2021-10-16 02:29:34,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:34" (3/3) ... [2021-10-16 02:29:34,210 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-10-16 02:29:34,216 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:29:34,216 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:29:34,275 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:29:34,283 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, mConcurrency=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 [2021-10-16 02:29:34,283 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:29:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 38 states have internal predecessors, (64), 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) [2021-10-16 02:29:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:29:34,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:29:34,302 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:29:34,302 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:29:34,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:29:34,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1844308852, now seen corresponding path program 1 times [2021-10-16 02:29:34,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:29:34,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566162028] [2021-10-16 02:29:34,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:29:34,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:29:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:29:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:29:34,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:29:34,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566162028] [2021-10-16 02:29:34,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566162028] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:29:34,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:29:34,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:29:34,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848169996] [2021-10-16 02:29:34,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:29:34,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:29:34,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:29:34,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:29:34,532 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 38 states have internal predecessors, (64), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-16 02:29:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:29:34,557 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2021-10-16 02:29:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:29:34,559 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-16 02:29:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:29:34,571 INFO L225 Difference]: With dead ends: 77 [2021-10-16 02:29:34,571 INFO L226 Difference]: Without dead ends: 36 [2021-10-16 02:29:34,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:29:34,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-16 02:29:34,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-16 02:29:34,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 35 states have internal predecessors, (48), 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) [2021-10-16 02:29:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2021-10-16 02:29:34,614 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 11 [2021-10-16 02:29:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:29:34,614 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2021-10-16 02:29:34,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-16 02:29:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2021-10-16 02:29:34,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:29:34,616 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:29:34,617 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:29:34,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:29:34,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:29:34,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:29:34,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1596074528, now seen corresponding path program 1 times [2021-10-16 02:29:34,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:29:34,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976126259] [2021-10-16 02:29:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:29:34,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:29:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:29:34,780 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:29:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:29:34,928 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:29:34,928 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:29:34,930 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:29:34,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:29:34,938 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:29:34,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:29:34 BoogieIcfgContainer [2021-10-16 02:29:34,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:29:34,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:29:34,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:29:34,974 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:29:34,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:34" (3/4) ... [2021-10-16 02:29:34,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:29:34,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:29:34,980 INFO L168 Benchmark]: Toolchain (without parser) took 1860.67 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 69.9 MB in the end (delta: -19.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:34,980 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory is still 67.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:34,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.95 ms. Allocated memory is still 92.3 MB. Free memory was 50.4 MB in the beginning and 64.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:34,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.64 ms. Allocated memory is still 92.3 MB. Free memory was 64.8 MB in the beginning and 62.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:34,982 INFO L168 Benchmark]: Boogie Preprocessor took 36.67 ms. Allocated memory is still 92.3 MB. Free memory was 62.8 MB in the beginning and 61.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:34,983 INFO L168 Benchmark]: RCFGBuilder took 654.33 ms. Allocated memory is still 92.3 MB. Free memory was 61.0 MB in the beginning and 42.7 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:34,983 INFO L168 Benchmark]: TraceAbstraction took 774.85 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 42.2 MB in the beginning and 69.9 MB in the end (delta: -27.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:34,984 INFO L168 Benchmark]: Witness Printer took 4.24 ms. Allocated memory is still 111.1 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:34,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory is still 67.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.95 ms. Allocated memory is still 92.3 MB. Free memory was 50.4 MB in the beginning and 64.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.64 ms. Allocated memory is still 92.3 MB. Free memory was 64.8 MB in the beginning and 62.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.67 ms. Allocated memory is still 92.3 MB. Free memory was 62.8 MB in the beginning and 61.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 654.33 ms. Allocated memory is still 92.3 MB. Free memory was 61.0 MB in the beginning and 42.7 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 774.85 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 42.2 MB in the beginning and 69.9 MB in the end (delta: -27.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.24 ms. Allocated memory is still 111.1 MB. Free memory is still 69.9 MB. 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: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L128] float x = __VERIFIER_nondet_float(); [L129] float y = -1.0f / 0.0f; [L111] __int32_t ix; VAL [one_fmod=1, Zero_fmod={5:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); [L131] COND TRUE isfinite_float(x) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={5:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={5:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={5:0}] [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, Zero_fmod={5:0}] [L137] reach_error() VAL [one_fmod=1, Zero_fmod={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 662.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.3ms, AutomataDifference: 71.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.5ms SsaConstructionTime, 165.1ms SatisfiabilityAnalysisTime, 85.1ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:29:35,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/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-5709675 [2021-10-16 02:29:37,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:29:37,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:29:37,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:29:37,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:29:37,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:29:37,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:29:37,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:29:37,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:29:37,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:29:37,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:29:37,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:29:37,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:29:37,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:29:37,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:29:37,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:29:37,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:29:37,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:29:37,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:29:37,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:29:37,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:29:37,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:29:37,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:29:37,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:29:37,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:29:37,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:29:37,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:29:37,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:29:37,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:29:37,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:29:37,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:29:37,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:29:37,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:29:37,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:29:37,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:29:37,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:29:37,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:29:37,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:29:37,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:29:37,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:29:37,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:29:37,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:29:37,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:29:37,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:29:37,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:29:37,827 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:29:37,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:29:37,827 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:29:37,828 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:29:37,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:29:37,828 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:29:37,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:29:37,831 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:29:37,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:29:37,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:29:37,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:29:37,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:29:37,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:29:37,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:29:37,832 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:29:37,833 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:29:37,833 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:29:37,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:29:37,833 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:29:37,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:29:37,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:29:37,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:29:37,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:29:37,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:29:37,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:29:37,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:29:37,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:29:37,836 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:29:37,836 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:29:37,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:29:37,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:29:37,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:29:37,837 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_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d2e2e25521cd2556b84d97e037726aee519fbda [2021-10-16 02:29:38,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:29:38,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:29:38,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:29:38,300 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:29:38,301 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:29:38,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-16 02:29:38,400 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/8e8a342db/47f2e5ff10314dddafe60a81bf7581a8/FLAGbd98eb27f [2021-10-16 02:29:39,014 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:29:39,016 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-16 02:29:39,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/8e8a342db/47f2e5ff10314dddafe60a81bf7581a8/FLAGbd98eb27f [2021-10-16 02:29:39,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/data/8e8a342db/47f2e5ff10314dddafe60a81bf7581a8 [2021-10-16 02:29:39,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:29:39,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:29:39,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:29:39,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:29:39,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:29:39,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331813bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39, skipping insertion in model container [2021-10-16 02:29:39,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:29:39,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:29:39,674 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_89b79b90-84b4-4f6d-afcf-646611a62438/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-16 02:29:39,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:29:39,708 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:29:39,770 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_89b79b90-84b4-4f6d-afcf-646611a62438/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-16 02:29:39,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:29:39,787 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:29:39,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39 WrapperNode [2021-10-16 02:29:39,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:29:39,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:29:39,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:29:39,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:29:39,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:29:39,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:29:39,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:29:39,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:29:39,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:29:39,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:29:39,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:29:39,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:29:39,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (1/1) ... [2021-10-16 02:29:39,893 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:29:39,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:29:39,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:29:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:29:39,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 02:29:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:29:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:29:39,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 02:29:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:29:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:29:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:29:39,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 02:29:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:29:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:29:42,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:29:42,843 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-16 02:29:42,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:42 BoogieIcfgContainer [2021-10-16 02:29:42,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:29:42,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:29:42,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:29:42,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:29:42,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:39" (1/3) ... [2021-10-16 02:29:42,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5f4c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:42, skipping insertion in model container [2021-10-16 02:29:42,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:39" (2/3) ... [2021-10-16 02:29:42,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5f4c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:42, skipping insertion in model container [2021-10-16 02:29:42,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:42" (3/3) ... [2021-10-16 02:29:42,867 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-10-16 02:29:42,872 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:29:42,872 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:29:42,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:29:42,929 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, mConcurrency=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 [2021-10-16 02:29:42,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:29:42,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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) [2021-10-16 02:29:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:29:42,949 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:29:42,950 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:29:42,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:29:42,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:29:42,956 INFO L82 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-10-16 02:29:42,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:29:42,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892518963] [2021-10-16 02:29:42,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:29:42,979 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:29:42,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:29:42,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:29:43,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:29:43,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:29:43,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:29:43,289 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-16 02:29:43,298 INFO L168 Benchmark]: Toolchain (without parser) took 3940.47 ms. Allocated memory is still 62.9 MB. Free memory was 42.0 MB in the beginning and 30.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:43,299 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:29:43,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.38 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 43.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:43,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 41.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:43,302 INFO L168 Benchmark]: Boogie Preprocessor took 45.41 ms. Allocated memory is still 62.9 MB. Free memory was 41.0 MB in the beginning and 39.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:43,303 INFO L168 Benchmark]: RCFGBuilder took 2960.82 ms. Allocated memory is still 62.9 MB. Free memory was 39.1 MB in the beginning and 39.7 MB in the end (delta: -657.0 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:43,307 INFO L168 Benchmark]: TraceAbstraction took 449.21 ms. Allocated memory is still 62.9 MB. Free memory was 39.2 MB in the beginning and 30.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:29:43,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.38 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 43.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 41.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.41 ms. Allocated memory is still 62.9 MB. Free memory was 41.0 MB in the beginning and 39.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2960.82 ms. Allocated memory is still 62.9 MB. Free memory was 39.1 MB in the beginning and 39.7 MB in the end (delta: -657.0 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 449.21 ms. Allocated memory is still 62.9 MB. Free memory was 39.2 MB in the beginning and 30.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:29:43,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b79b90-84b4-4f6d-afcf-646611a62438/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...