./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8 --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 0234da8cdb9a2c3c5c10a76d147ba9cd027ddd81 ............................................................................................................................................................................................................................................................................................................................. 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8 --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 0234da8cdb9a2c3c5c10a76d147ba9cd027ddd81 ...................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 07:15:51,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:15:51,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:15:51,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:15:51,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:15:51,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:15:51,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:15:51,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:15:51,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:15:51,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:15:51,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:15:51,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:15:51,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:15:51,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:15:51,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:15:51,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:15:51,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:15:51,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:15:51,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:15:51,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:15:51,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:15:51,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:15:51,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:15:51,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:15:51,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:15:51,166 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:15:51,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:15:51,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:15:51,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:15:51,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:15:51,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:15:51,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:15:51,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:15:51,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:15:51,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:15:51,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:15:51,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:15:51,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:15:51,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:15:51,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:15:51,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:15:51,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:15:51,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:15:51,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:15:51,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:15:51,210 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:15:51,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:15:51,210 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:15:51,210 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:15:51,211 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:15:51,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:15:51,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:15:51,211 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:15:51,211 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:15:51,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:15:51,212 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:15:51,212 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:15:51,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:15:51,213 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:15:51,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:15:51,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:15:51,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:15:51,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:15:51,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:15:51,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:15:51,215 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:15:51,215 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:15:51,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:15:51,215 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:15:51,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:15:51,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:15:51,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:15:51,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:15:51,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:15:51,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:15:51,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:15:51,217 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:15:51,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:15:51,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:15:51,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:15:51,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:15:51,223 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0234da8cdb9a2c3c5c10a76d147ba9cd027ddd81 [2021-10-13 07:15:51,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:15:51,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:15:51,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:15:51,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:15:51,518 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:15:51,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2021-10-13 07:15:51,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/5bbf21e10/cf797c68a9914adc8c1b138b1031281c/FLAG9cd47abb4 [2021-10-13 07:15:52,162 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:15:52,162 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2021-10-13 07:15:52,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/5bbf21e10/cf797c68a9914adc8c1b138b1031281c/FLAG9cd47abb4 [2021-10-13 07:15:52,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/5bbf21e10/cf797c68a9914adc8c1b138b1031281c [2021-10-13 07:15:52,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:15:52,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:15:52,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:15:52,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:15:52,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:15:52,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1330ab66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52, skipping insertion in model container [2021-10-13 07:15:52,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:15:52,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:15:52,792 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2021-10-13 07:15:52,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:15:52,802 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:15:52,852 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2021-10-13 07:15:52,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:15:52,867 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:15:52,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52 WrapperNode [2021-10-13 07:15:52,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:15:52,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:15:52,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:15:52,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:15:52,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:15:52,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:15:52,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:15:52,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:15:52,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:15:52,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:15:52,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:15:52,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:15:52,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (1/1) ... [2021-10-13 07:15:52,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:15:53,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:15:53,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:15:53,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:15:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:15:53,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:15:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:15:53,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:15:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:15:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:15:53,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:15:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:15:53,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 07:15:53,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:15:53,940 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:15:53,940 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-13 07:15:53,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:53 BoogieIcfgContainer [2021-10-13 07:15:53,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:15:53,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:15:53,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:15:53,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:15:53,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:15:52" (1/3) ... [2021-10-13 07:15:53,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512a51f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:15:53, skipping insertion in model container [2021-10-13 07:15:53,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:52" (2/3) ... [2021-10-13 07:15:53,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512a51f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:15:53, skipping insertion in model container [2021-10-13 07:15:53,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:53" (3/3) ... [2021-10-13 07:15:53,953 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2021-10-13 07:15:53,959 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:15:53,959 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:15:54,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:15:54,006 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 [2021-10-13 07:15:54,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:15:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 44 states have internal predecessors, (76), 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) [2021-10-13 07:15:54,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:15:54,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:54,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:15:54,035 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:54,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:54,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1875325126, now seen corresponding path program 1 times [2021-10-13 07:15:54,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:15:54,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212235430] [2021-10-13 07:15:54,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:54,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:15:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:54,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:15:54,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212235430] [2021-10-13 07:15:54,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212235430] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:54,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:54,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:15:54,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416179484] [2021-10-13 07:15:54,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:15:54,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:15:54,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:15:54,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:15:54,324 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 44 states have internal predecessors, (76), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 07:15:54,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:54,355 INFO L93 Difference]: Finished difference Result 88 states and 149 transitions. [2021-10-13 07:15:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:15:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-13 07:15:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:54,367 INFO L225 Difference]: With dead ends: 88 [2021-10-13 07:15:54,367 INFO L226 Difference]: Without dead ends: 42 [2021-10-13 07:15:54,371 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 [2021-10-13 07:15:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-13 07:15:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-13 07:15:54,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 41 states have internal predecessors, (60), 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) [2021-10-13 07:15:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2021-10-13 07:15:54,442 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 10 [2021-10-13 07:15:54,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:54,443 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2021-10-13 07:15:54,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-13 07:15:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2021-10-13 07:15:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:15:54,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:54,447 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:15:54,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:15:54,448 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:54,452 INFO L82 PathProgramCache]: Analyzing trace with hash -86320413, now seen corresponding path program 1 times [2021-10-13 07:15:54,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:15:54,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202934245] [2021-10-13 07:15:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:54,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:15:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:15:54,556 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:15:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:15:54,696 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:15:54,697 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:15:54,699 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:15:54,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:15:54,708 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:15:54,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:15:54 BoogieIcfgContainer [2021-10-13 07:15:54,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:15:54,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:15:54,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:15:54,760 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:15:54,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:53" (3/4) ... [2021-10-13 07:15:54,765 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:15:54,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:15:54,768 INFO L168 Benchmark]: Toolchain (without parser) took 2276.40 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 77.8 MB in the beginning and 109.3 MB in the end (delta: -31.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:15:54,769 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory was 85.7 MB in the beginning and 85.7 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:15:54,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.29 ms. Allocated memory is still 115.3 MB. Free memory was 77.6 MB in the beginning and 84.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:54,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.95 ms. Allocated memory is still 115.3 MB. Free memory was 84.8 MB in the beginning and 82.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:54,779 INFO L168 Benchmark]: Boogie Preprocessor took 58.34 ms. Allocated memory is still 115.3 MB. Free memory was 82.2 MB in the beginning and 80.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:54,781 INFO L168 Benchmark]: RCFGBuilder took 964.19 ms. Allocated memory is still 115.3 MB. Free memory was 80.1 MB in the beginning and 52.3 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:54,781 INFO L168 Benchmark]: TraceAbstraction took 814.30 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 51.8 MB in the beginning and 109.3 MB in the end (delta: -57.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:15:54,782 INFO L168 Benchmark]: Witness Printer took 5.79 ms. Allocated memory is still 146.8 MB. Free memory is still 109.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:15:54,790 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 115.3 MB. Free memory was 85.7 MB in the beginning and 85.7 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.29 ms. Allocated memory is still 115.3 MB. Free memory was 77.6 MB in the beginning and 84.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.95 ms. Allocated memory is still 115.3 MB. Free memory was 84.8 MB in the beginning and 82.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.34 ms. Allocated memory is still 115.3 MB. Free memory was 82.2 MB in the beginning and 80.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 964.19 ms. Allocated memory is still 115.3 MB. Free memory was 80.1 MB in the beginning and 52.3 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 814.30 ms. Allocated memory was 115.3 MB in the beginning and 146.8 MB in the end (delta: 31.5 MB). Free memory was 51.8 MB in the beginning and 109.3 MB in the end (delta: -57.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.79 ms. Allocated memory is still 146.8 MB. Free memory is still 109.3 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: 193]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={5:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={5:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={5:0}] [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, Zero_fmod={5:0}] [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() VAL [one_fmod=1, Zero_fmod={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 709.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.9ms, AutomataDifference: 94.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 64 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=45occurred 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: 32.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.8ms SsaConstructionTime, 122.2ms SatisfiabilityAnalysisTime, 72.3ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-13 07:15:54,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:15:57,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:15:57,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:15:57,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:15:57,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:15:57,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:15:57,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:15:57,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:15:57,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:15:57,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:15:57,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:15:57,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:15:57,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:15:57,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:15:57,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:15:57,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:15:57,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:15:57,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:15:57,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:15:57,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:15:57,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:15:57,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:15:57,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:15:57,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:15:57,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:15:57,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:15:57,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:15:57,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:15:57,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:15:57,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:15:57,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:15:57,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:15:57,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:15:57,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:15:57,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:15:57,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:15:57,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:15:57,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:15:57,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:15:57,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:15:57,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:15:57,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:15:57,643 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:15:57,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:15:57,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:15:57,645 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:15:57,645 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:15:57,646 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:15:57,646 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:15:57,646 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:15:57,646 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:15:57,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:15:57,649 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:15:57,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:15:57,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:15:57,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:15:57,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:15:57,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:15:57,650 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:15:57,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:15:57,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:15:57,651 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:15:57,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:15:57,651 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:15:57,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:15:57,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:15:57,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:15:57,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:15:57,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:15:57,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:15:57,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:15:57,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:15:57,653 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:15:57,654 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:15:57,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:15:57,654 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:15:57,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:15:57,655 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0234da8cdb9a2c3c5c10a76d147ba9cd027ddd81 [2021-10-13 07:15:58,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:15:58,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:15:58,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:15:58,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:15:58,178 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:15:58,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2021-10-13 07:15:58,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/69aae9d70/a2e6880021804df0afebe76d7ffd871c/FLAGd182a6a59 [2021-10-13 07:15:58,948 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:15:58,949 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2021-10-13 07:15:58,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/69aae9d70/a2e6880021804df0afebe76d7ffd871c/FLAGd182a6a59 [2021-10-13 07:15:59,292 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/data/69aae9d70/a2e6880021804df0afebe76d7ffd871c [2021-10-13 07:15:59,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:15:59,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:15:59,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:15:59,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:15:59,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:15:59,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd0884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59, skipping insertion in model container [2021-10-13 07:15:59,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:15:59,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:15:59,644 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2021-10-13 07:15:59,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:15:59,679 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:15:59,769 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_72313828-1af6-4f76-a8c9-b109d5ccbea1/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2021-10-13 07:15:59,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:15:59,804 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:15:59,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59 WrapperNode [2021-10-13 07:15:59,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:15:59,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:15:59,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:15:59,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:15:59,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:15:59,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:15:59,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:15:59,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:15:59,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:15:59,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:15:59,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:15:59,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:15:59,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (1/1) ... [2021-10-13 07:15:59,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:16:00,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:16:00,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:16:00,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:16:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 07:16:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 07:16:00,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:16:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:16:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 07:16:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:16:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:16:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:16:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:16:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:16:05,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:16:05,082 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-13 07:16:05,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:05 BoogieIcfgContainer [2021-10-13 07:16:05,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:16:05,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:16:05,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:16:05,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:16:05,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:15:59" (1/3) ... [2021-10-13 07:16:05,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39277ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:05, skipping insertion in model container [2021-10-13 07:16:05,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:59" (2/3) ... [2021-10-13 07:16:05,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39277ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:05, skipping insertion in model container [2021-10-13 07:16:05,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:05" (3/3) ... [2021-10-13 07:16:05,095 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2021-10-13 07:16:05,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:16:05,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:16:05,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:16:05,168 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 [2021-10-13 07:16:05,170 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:16:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 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) [2021-10-13 07:16:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:16:05,218 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:16:05,219 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:16:05,220 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:16:05,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:16:05,231 INFO L82 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2021-10-13 07:16:05,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:16:05,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128598004] [2021-10-13 07:16:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:16:05,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:16:05,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:16:05,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:16:05,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:16:05,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:16:05,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:16:05,534 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 [2021-10-13 07:16:05,540 INFO L168 Benchmark]: Toolchain (without parser) took 6241.17 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 42.0 MB in the beginning and 46.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:16:05,541 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:16:05,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.92 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 42.5 MB in the end (delta: -794.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:16:05,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.49 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 40.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:16:05,545 INFO L168 Benchmark]: Boogie Preprocessor took 89.62 ms. Allocated memory is still 62.9 MB. Free memory was 40.3 MB in the beginning and 38.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:16:05,546 INFO L168 Benchmark]: RCFGBuilder took 5106.06 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 38.0 MB in the beginning and 56.1 MB in the end (delta: -18.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:16:05,547 INFO L168 Benchmark]: TraceAbstraction took 450.59 ms. Allocated memory is still 83.9 MB. Free memory was 55.7 MB in the beginning and 46.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:16:05,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 43.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 506.92 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 42.5 MB in the end (delta: -794.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.49 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 40.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.62 ms. Allocated memory is still 62.9 MB. Free memory was 40.3 MB in the beginning and 38.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5106.06 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 38.0 MB in the beginning and 56.1 MB in the end (delta: -18.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 450.59 ms. Allocated memory is still 83.9 MB. Free memory was 55.7 MB in the beginning and 46.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 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. [2021-10-13 07:16:05,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72313828-1af6-4f76-a8c9-b109d5ccbea1/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...