./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/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_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/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_ade16147-43d3-4aeb-b16b-1608b3c1c779/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_ade16147-43d3-4aeb-b16b-1608b3c1c779/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 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/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_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/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_ade16147-43d3-4aeb-b16b-1608b3c1c779/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_ade16147-43d3-4aeb-b16b-1608b3c1c779/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 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-4e77c04 [2021-10-13 07:01:50,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:01:50,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:01:50,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:01:50,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:01:50,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:01:50,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:01:50,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:01:50,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:01:50,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:01:50,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:01:50,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:01:50,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:01:50,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:01:50,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:01:50,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:01:50,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:01:50,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:01:50,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:01:50,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:01:50,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:01:50,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:01:50,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:01:50,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:01:50,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:01:50,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:01:50,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:01:50,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:01:50,586 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:01:50,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:01:50,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:01:50,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:01:50,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:01:50,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:01:50,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:01:50,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:01:50,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:01:50,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:01:50,594 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:01:50,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:01:50,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:01:50,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:01:50,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:01:50,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:01:50,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:01:50,647 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:01:50,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:01:50,647 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:01:50,647 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:01:50,648 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:01:50,648 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:01:50,654 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:01:50,654 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:01:50,654 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:01:50,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:01:50,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:01:50,654 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:01:50,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:01:50,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:01:50,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:01:50,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:01:50,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:01:50,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:01:50,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:01:50,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:01:50,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:01:50,656 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:01:50,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:01:50,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:01:50,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:01:50,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:01:50,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:01:50,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:50,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:01:50,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:01:50,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:01:50,659 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:01:50,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:01:50,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:01:50,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:01:50,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:01:50,660 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d2e2e25521cd2556b84d97e037726aee519fbda [2021-10-13 07:01:50,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:01:50,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:01:50,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:01:50,963 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:01:50,964 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:01:50,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-13 07:01:51,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/58c8d878e/5bd99cd3d5a14d85ac464055a2c2f3ff/FLAG1b49d3614 [2021-10-13 07:01:51,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:01:51,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-13 07:01:51,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/58c8d878e/5bd99cd3d5a14d85ac464055a2c2f3ff/FLAG1b49d3614 [2021-10-13 07:01:51,852 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/58c8d878e/5bd99cd3d5a14d85ac464055a2c2f3ff [2021-10-13 07:01:51,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:01:51,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:01:51,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:51,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:01:51,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:01:51,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:51" (1/1) ... [2021-10-13 07:01:51,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a1e872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:51, skipping insertion in model container [2021-10-13 07:01:51,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:51" (1/1) ... [2021-10-13 07:01:51,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:01:51,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:01:52,145 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-13 07:01:52,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:52,158 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:01:52,201 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-13 07:01:52,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:52,218 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:01:52,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52 WrapperNode [2021-10-13 07:01:52,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:52,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:52,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:01:52,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:01:52,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:52,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:01:52,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:01:52,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:01:52,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:01:52,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:01:52,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:01:52,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:01:52,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (1/1) ... [2021-10-13 07:01:52,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:52,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:01:52,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:01:52,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:01:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:01:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:01:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:01:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:01:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:01:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:01:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:01:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:01:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 07:01:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:01:53,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:01:53,028 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 07:01:53,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:53 BoogieIcfgContainer [2021-10-13 07:01:53,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:01:53,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:01:53,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:01:53,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:01:53,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:01:51" (1/3) ... [2021-10-13 07:01:53,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a11d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:53, skipping insertion in model container [2021-10-13 07:01:53,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:52" (2/3) ... [2021-10-13 07:01:53,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a11d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:53, skipping insertion in model container [2021-10-13 07:01:53,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:53" (3/3) ... [2021-10-13 07:01:53,044 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-10-13 07:01:53,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:01:53,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:01:53,109 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:01:53,115 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 07:01:53,115 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:01:53,132 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) [2021-10-13 07:01:53,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:01:53,138 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:01:53,139 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:01:53,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:01:53,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:01:53,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1844308852, now seen corresponding path program 1 times [2021-10-13 07:01:53,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:01:53,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425943759] [2021-10-13 07:01:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:53,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:01:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:01:53,338 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 07:01:53,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:01:53,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425943759] [2021-10-13 07:01:53,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425943759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:01:53,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:01:53,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:01:53,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339186288] [2021-10-13 07:01:53,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:01:53,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:01:53,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:01:53,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:01:53,375 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) [2021-10-13 07:01:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:01:53,407 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2021-10-13 07:01:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:01:53,409 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 [2021-10-13 07:01:53,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:01:53,420 INFO L225 Difference]: With dead ends: 77 [2021-10-13 07:01:53,420 INFO L226 Difference]: Without dead ends: 36 [2021-10-13 07:01:53,424 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 07:01:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-13 07:01:53,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-13 07:01:53,469 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) [2021-10-13 07:01:53,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2021-10-13 07:01:53,473 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 11 [2021-10-13 07:01:53,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:01:53,474 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2021-10-13 07:01:53,474 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) [2021-10-13 07:01:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2021-10-13 07:01:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 07:01:53,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:01:53,477 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:01:53,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:01:53,478 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:01:53,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:01:53,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1596074528, now seen corresponding path program 1 times [2021-10-13 07:01:53,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:01:53,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36181010] [2021-10-13 07:01:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:53,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:01:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:01:53,680 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:01:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:01:53,887 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:01:53,887 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:01:53,889 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:01:53,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:01:53,901 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:01:53,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:01:53 BoogieIcfgContainer [2021-10-13 07:01:53,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:01:53,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:01:53,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:01:53,960 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:01:53,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:53" (3/4) ... [2021-10-13 07:01:53,963 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:01:53,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:01:53,966 INFO L168 Benchmark]: Toolchain (without parser) took 2104.85 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 75.3 MB in the beginning and 118.2 MB in the end (delta: -42.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:53,968 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 117.4 MB. Free memory was 92.4 MB in the beginning and 92.3 MB in the end (delta: 74.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:53,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.27 ms. Allocated memory is still 117.4 MB. Free memory was 75.1 MB in the beginning and 90.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:53,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.22 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 88.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:53,981 INFO L168 Benchmark]: Boogie Preprocessor took 42.93 ms. Allocated memory is still 117.4 MB. Free memory was 88.5 MB in the beginning and 87.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:53,983 INFO L168 Benchmark]: RCFGBuilder took 697.45 ms. Allocated memory is still 117.4 MB. Free memory was 86.8 MB in the beginning and 68.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:53,983 INFO L168 Benchmark]: TraceAbstraction took 925.89 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 67.9 MB in the beginning and 119.0 MB in the end (delta: -51.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:53,984 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 148.9 MB. Free memory was 119.0 MB in the beginning and 118.2 MB in the end (delta: 793.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:53,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 117.4 MB. Free memory was 92.4 MB in the beginning and 92.3 MB in the end (delta: 74.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.27 ms. Allocated memory is still 117.4 MB. Free memory was 75.1 MB in the beginning and 90.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.22 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 88.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.93 ms. Allocated memory is still 117.4 MB. Free memory was 88.5 MB in the beginning and 87.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 697.45 ms. Allocated memory is still 117.4 MB. Free memory was 86.8 MB in the beginning and 68.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 925.89 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 67.9 MB in the beginning and 119.0 MB in the end (delta: -51.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.96 ms. Allocated memory is still 148.9 MB. Free memory was 119.0 MB in the beginning and 118.2 MB in the end (delta: 793.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 792.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.8ms, AutomataDifference: 73.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, 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: 32.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.9ms SsaConstructionTime, 209.7ms SatisfiabilityAnalysisTime, 59.6ms 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 [2021-10-13 07:01:54,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/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 07:01:56,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:01:56,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:01:56,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:01:56,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:01:56,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:01:56,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:01:56,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:01:56,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:01:56,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:01:56,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:01:56,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:01:56,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:01:56,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:01:56,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:01:56,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:01:56,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:01:56,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:01:56,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:01:56,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:01:56,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:01:56,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:01:56,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:01:56,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:01:56,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:01:56,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:01:56,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:01:56,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:01:56,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:01:56,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:01:56,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:01:56,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:01:56,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:01:56,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:01:56,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:01:56,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:01:56,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:01:56,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:01:56,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:01:56,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:01:56,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:01:56,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:01:56,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:01:56,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:01:56,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:01:56,932 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:01:56,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:01:56,932 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:01:56,933 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:01:56,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:01:56,933 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:01:56,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:01:56,935 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:01:56,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:01:56,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:01:56,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:01:56,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:01:56,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:01:56,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:01:56,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:01:56,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:01:56,937 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:01:56,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:01:56,938 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:01:56,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:01:56,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:01:56,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:01:56,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:01:56,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:56,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:01:56,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:01:56,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:01:56,941 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:01:56,941 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:01:56,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:01:56,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:01:56,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:01:56,942 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d2e2e25521cd2556b84d97e037726aee519fbda [2021-10-13 07:01:57,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:01:57,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:01:57,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:01:57,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:01:57,394 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:01:57,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-13 07:01:57,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/542ed736c/f2ab4ca8358f47b2bc52cc7e9a6d0eec/FLAG8c23a4599 [2021-10-13 07:01:58,136 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:01:58,137 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-10-13 07:01:58,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/542ed736c/f2ab4ca8358f47b2bc52cc7e9a6d0eec/FLAG8c23a4599 [2021-10-13 07:01:58,451 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/data/542ed736c/f2ab4ca8358f47b2bc52cc7e9a6d0eec [2021-10-13 07:01:58,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:01:58,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:01:58,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:58,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:01:58,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:01:58,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:58,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d94da7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58, skipping insertion in model container [2021-10-13 07:01:58,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:58,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:01:58,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:01:58,724 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-13 07:01:58,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:58,742 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:01:58,851 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_ade16147-43d3-4aeb-b16b-1608b3c1c779/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-10-13 07:01:58,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:58,878 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:01:58,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58 WrapperNode [2021-10-13 07:01:58,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:58,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:58,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:01:58,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:01:58,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:58,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:58,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:58,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:01:58,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:01:58,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:01:58,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:58,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:01:59,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:01:59,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:01:59,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:01:59,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (1/1) ... [2021-10-13 07:01:59,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:59,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:01:59,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:01:59,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:01:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-13 07:01:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:01:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:01:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 07:01:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:01:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:01:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:01:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 07:01:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:01:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:02:01,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:02:01,965 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-13 07:02:01,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:02:01 BoogieIcfgContainer [2021-10-13 07:02:01,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:02:01,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:02:01,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:02:01,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:02:01,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:01:58" (1/3) ... [2021-10-13 07:02:01,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f04b601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:02:01, skipping insertion in model container [2021-10-13 07:02:01,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:58" (2/3) ... [2021-10-13 07:02:01,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f04b601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:02:01, skipping insertion in model container [2021-10-13 07:02:01,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:02:01" (3/3) ... [2021-10-13 07:02:01,978 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-10-13 07:02:01,985 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:02:01,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:02:02,047 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:02:02,055 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 07:02:02,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:02:02,074 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) [2021-10-13 07:02:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:02:02,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:02:02,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:02:02,083 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:02:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:02:02,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-10-13 07:02:02,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:02:02,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610391440] [2021-10-13 07:02:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:02:02,113 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:02:02,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:02:02,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:02:02,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:02:02,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:02:02,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:02:02,419 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 07:02:02,425 INFO L168 Benchmark]: Toolchain (without parser) took 3967.51 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 48.3 MB in the beginning and 63.3 MB in the end (delta: -15.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:02,426 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 67.1 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:02:02,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.54 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 49.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:02,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.49 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 47.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:02,429 INFO L168 Benchmark]: Boogie Preprocessor took 93.77 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 45.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:02,430 INFO L168 Benchmark]: RCFGBuilder took 2904.76 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 45.3 MB in the beginning and 73.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:02,431 INFO L168 Benchmark]: TraceAbstraction took 451.72 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 63.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:02,436 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 67.1 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 420.54 ms. Allocated memory is still 67.1 MB. Free memory was 48.1 MB in the beginning and 49.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.49 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 47.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.77 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 45.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2904.76 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 45.3 MB in the beginning and 73.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 451.72 ms. Allocated memory is still 94.4 MB. Free memory was 72.3 MB in the beginning and 63.3 MB in the end (delta: 9.0 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. [2021-10-13 07:02:02,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ade16147-43d3-4aeb-b16b-1608b3c1c779/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...