./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.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_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/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_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/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_ba575b98-bad8-4f6f-8dd1-33345365be2b/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 0a3f551236e6278c9c002017bfa081dd6b42c960 .......................................................................................................................................................................................................................................................................................................................................... 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/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_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/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_ba575b98-bad8-4f6f-8dd1-33345365be2b/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 0a3f551236e6278c9c002017bfa081dd6b42c960 ....................................................................................................................................................................................................................................................................... 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 07:01:09,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:01:09,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:01:10,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:01:10,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:01:10,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:01:10,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:01:10,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:01:10,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:01:10,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:01:10,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:01:10,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:01:10,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:01:10,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:01:10,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:01:10,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:01:10,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:01:10,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:01:10,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:01:10,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:01:10,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:01:10,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:01:10,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:01:10,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:01:10,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:01:10,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:01:10,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:01:10,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:01:10,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:01:10,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:01:10,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:01:10,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:01:10,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:01:10,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:01:10,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:01:10,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:01:10,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:01:10,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:01:10,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:01:10,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:01:10,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:01:10,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:01:10,115 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:01:10,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:01:10,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:01:10,116 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:01:10,116 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:01:10,116 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:01:10,117 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:01:10,117 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:01:10,117 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:01:10,117 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:01:10,118 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:01:10,118 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:01:10,118 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:01:10,118 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:01:10,119 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:01:10,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:01:10,119 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:01:10,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:01:10,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:01:10,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:01:10,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:01:10,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:01:10,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:01:10,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:01:10,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:01:10,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:01:10,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:01:10,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:01:10,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:01:10,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:01:10,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:10,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:01:10,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:01:10,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:01:10,124 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:01:10,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:01:10,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:01:10,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:01:10,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:01:10,125 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3f551236e6278c9c002017bfa081dd6b42c960 [2021-10-13 07:01:10,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:01:10,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:01:10,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:01:10,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:01:10,418 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:01:10,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2021-10-13 07:01:10,492 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/6fed08e52/5d600ba1746443acb28a9330005077ed/FLAG84702d9ae [2021-10-13 07:01:10,976 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:01:10,977 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2021-10-13 07:01:11,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/6fed08e52/5d600ba1746443acb28a9330005077ed/FLAG84702d9ae [2021-10-13 07:01:11,334 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/6fed08e52/5d600ba1746443acb28a9330005077ed [2021-10-13 07:01:11,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:01:11,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:01:11,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:11,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:01:11,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:01:11,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d26dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11, skipping insertion in model container [2021-10-13 07:01:11,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:01:11,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:01:11,607 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2021-10-13 07:01:11,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:11,619 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:01:11,658 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2021-10-13 07:01:11,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:11,675 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:01:11,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11 WrapperNode [2021-10-13 07:01:11,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:11,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:11,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:01:11,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:01:11,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:11,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:01:11,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:01:11,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:01:11,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:01:11,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:01:11,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:01:11,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:01:11,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (1/1) ... [2021-10-13 07:01:11,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:11,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:01:11,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:01:11,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:01:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:01:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:01:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:01:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:01:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:01:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:01:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:01:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:01:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 07:01:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:01:12,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:01:12,471 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-13 07:01:12,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:12 BoogieIcfgContainer [2021-10-13 07:01:12,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:01:12,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:01:12,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:01:12,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:01:12,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:01:11" (1/3) ... [2021-10-13 07:01:12,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19be1c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:12, skipping insertion in model container [2021-10-13 07:01:12,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:11" (2/3) ... [2021-10-13 07:01:12,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19be1c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:12, skipping insertion in model container [2021-10-13 07:01:12,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:12" (3/3) ... [2021-10-13 07:01:12,484 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2021-10-13 07:01:12,492 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:01:12,492 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:01:12,550 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:01:12,558 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 07:01:12,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:01:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 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 07:01:12,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:01:12,591 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:01:12,592 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:01:12,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:01:12,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:01:12,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1208250894, now seen corresponding path program 1 times [2021-10-13 07:01:12,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:01:12,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711689154] [2021-10-13 07:01:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:12,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:01:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:01:12,863 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 07:01:12,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:01:12,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711689154] [2021-10-13 07:01:12,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711689154] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:01:12,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:01:12,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:01:12,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501069883] [2021-10-13 07:01:12,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:01:12,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:01:12,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:01:12,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:01:12,890 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 27 states have internal predecessors, (43), 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 07:01:12,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:01:12,910 INFO L93 Difference]: Finished difference Result 55 states and 85 transitions. [2021-10-13 07:01:12,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:01:12,912 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 07:01:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:01:12,920 INFO L225 Difference]: With dead ends: 55 [2021-10-13 07:01:12,920 INFO L226 Difference]: Without dead ends: 26 [2021-10-13 07:01:12,923 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 07:01:12,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-13 07:01:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-13 07:01:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 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 07:01:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-10-13 07:01:12,958 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 10 [2021-10-13 07:01:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:01:12,958 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-10-13 07:01:12,959 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 07:01:12,959 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-10-13 07:01:12,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:01:12,960 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:01:12,961 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:01:12,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:01:12,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:01:12,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:01:12,965 INFO L82 PathProgramCache]: Analyzing trace with hash 932366032, now seen corresponding path program 1 times [2021-10-13 07:01:12,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:01:12,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996097710] [2021-10-13 07:01:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:12,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:01:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:01:13,114 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:01:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:01:13,255 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:01:13,255 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:01:13,257 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:01:13,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:01:13,265 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:01:13,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:01:13 BoogieIcfgContainer [2021-10-13 07:01:13,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:01:13,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:01:13,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:01:13,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:01:13,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:12" (3/4) ... [2021-10-13 07:01:13,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:01:13,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:01:13,337 INFO L168 Benchmark]: Toolchain (without parser) took 1998.34 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 91.0 MB in the beginning and 112.1 MB in the end (delta: -21.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:13,338 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:13,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.10 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 95.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:13,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.15 ms. Allocated memory is still 123.7 MB. Free memory was 95.6 MB in the beginning and 93.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:13,346 INFO L168 Benchmark]: Boogie Preprocessor took 45.97 ms. Allocated memory is still 123.7 MB. Free memory was 93.5 MB in the beginning and 91.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:13,347 INFO L168 Benchmark]: RCFGBuilder took 677.41 ms. Allocated memory is still 123.7 MB. Free memory was 91.4 MB in the beginning and 70.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:13,348 INFO L168 Benchmark]: TraceAbstraction took 854.78 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 69.9 MB in the beginning and 113.0 MB in the end (delta: -43.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:13,349 INFO L168 Benchmark]: Witness Printer took 4.22 ms. Allocated memory is still 159.4 MB. Free memory was 113.0 MB in the beginning and 112.1 MB in the end (delta: 867.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:13,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.10 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 95.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.15 ms. Allocated memory is still 123.7 MB. Free memory was 95.6 MB in the beginning and 93.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.97 ms. Allocated memory is still 123.7 MB. Free memory was 93.5 MB in the beginning and 91.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 677.41 ms. Allocated memory is still 123.7 MB. Free memory was 91.4 MB in the beginning and 70.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 854.78 ms. Allocated memory was 123.7 MB in the beginning and 159.4 MB in the end (delta: 35.7 MB). Free memory was 69.9 MB in the beginning and 113.0 MB in the end (delta: -43.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.22 ms. Allocated memory is still 159.4 MB. Free memory was 113.0 MB in the beginning and 112.1 MB in the end (delta: 867.2 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: 161]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 160. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L156] double x = 0.0; [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L157] double res = atan_double(x); [L160] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L160] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L161] reach_error() VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 715.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 22.8ms, AutomataDifference: 50.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 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=28occurred 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: 21.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.4ms SsaConstructionTime, 212.6ms SatisfiabilityAnalysisTime, 94.5ms 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 07:01:13,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/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 07:01:15,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:01:15,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:01:15,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:01:15,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:01:15,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:01:15,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:01:15,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:01:15,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:01:15,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:01:15,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:01:15,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:01:15,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:01:15,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:01:15,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:01:15,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:01:15,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:01:15,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:01:15,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:01:15,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:01:15,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:01:15,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:01:15,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:01:15,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:01:15,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:01:15,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:01:15,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:01:15,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:01:15,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:01:15,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:01:15,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:01:15,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:01:15,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:01:15,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:01:15,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:01:15,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:01:15,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:01:15,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:01:15,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:01:15,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:01:15,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:01:15,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:01:15,803 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:01:15,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:01:15,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:01:15,804 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:01:15,805 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:01:15,805 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:01:15,805 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:01:15,805 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:01:15,805 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:01:15,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:01:15,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:01:15,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:01:15,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:01:15,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:01:15,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:01:15,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:01:15,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:01:15,807 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:01:15,808 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:01:15,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:01:15,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:01:15,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:01:15,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:01:15,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:01:15,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:01:15,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:01:15,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:15,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:01:15,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:01:15,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:01:15,810 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:01:15,810 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:01:15,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:01:15,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:01:15,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:01:15,811 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3f551236e6278c9c002017bfa081dd6b42c960 [2021-10-13 07:01:16,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:01:16,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:01:16,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:01:16,195 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:01:16,196 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:01:16,199 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2021-10-13 07:01:16,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/2aa298c95/25a20ced52a14ad7b26b83337e529b2b/FLAGbe39d8ac4 [2021-10-13 07:01:16,832 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:01:16,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2021-10-13 07:01:16,847 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/2aa298c95/25a20ced52a14ad7b26b83337e529b2b/FLAGbe39d8ac4 [2021-10-13 07:01:17,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/data/2aa298c95/25a20ced52a14ad7b26b83337e529b2b [2021-10-13 07:01:17,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:01:17,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:01:17,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:17,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:01:17,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:01:17,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747f3206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17, skipping insertion in model container [2021-10-13 07:01:17,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:01:17,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:01:17,443 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2021-10-13 07:01:17,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:17,459 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:01:17,503 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_ba575b98-bad8-4f6f-8dd1-33345365be2b/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c[3928,3941] [2021-10-13 07:01:17,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:01:17,568 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:01:17,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17 WrapperNode [2021-10-13 07:01:17,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:01:17,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:17,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:01:17,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:01:17,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:01:17,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:01:17,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:01:17,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:01:17,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:01:17,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:01:17,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:01:17,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:01:17,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (1/1) ... [2021-10-13 07:01:17,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:01:17,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:01:17,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:01:17,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:01:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 07:01:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 07:01:17,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:01:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:01:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 07:01:17,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:01:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:01:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:01:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:01:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:01:33,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:01:33,915 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-13 07:01:33,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:33 BoogieIcfgContainer [2021-10-13 07:01:33,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:01:33,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:01:33,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:01:33,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:01:33,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:01:17" (1/3) ... [2021-10-13 07:01:33,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687f71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:33, skipping insertion in model container [2021-10-13 07:01:33,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:01:17" (2/3) ... [2021-10-13 07:01:33,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687f71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:01:33, skipping insertion in model container [2021-10-13 07:01:33,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:01:33" (3/3) ... [2021-10-13 07:01:33,927 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2021-10-13 07:01:33,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:01:33,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:01:33,972 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:01:33,977 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 07:01:33,978 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:01:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.6486486486486487) internal successors, (61), 38 states have internal predecessors, (61), 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 07:01:33,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:01:33,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:01:33,996 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:01:33,996 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:01:34,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:01:34,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2021-10-13 07:01:34,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:01:34,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464701855] [2021-10-13 07:01:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:34,015 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:01:34,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:01:34,024 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:01:34,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:01:34,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:01:34,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:01:34,317 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 07:01:34,321 INFO L168 Benchmark]: Toolchain (without parser) took 17127.99 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.1 MB in the beginning and 37.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:34,322 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:34,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.27 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 44.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:34,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.63 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 42.5 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:01:34,324 INFO L168 Benchmark]: Boogie Preprocessor took 44.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 40.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:34,325 INFO L168 Benchmark]: RCFGBuilder took 16241.51 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 40.2 MB in the beginning and 47.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:34,326 INFO L168 Benchmark]: TraceAbstraction took 399.20 ms. Allocated memory is still 75.5 MB. Free memory was 47.2 MB in the beginning and 37.6 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:01:34,330 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 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.27 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 44.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.63 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 42.5 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 40.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16241.51 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 40.2 MB in the beginning and 47.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 399.20 ms. Allocated memory is still 75.5 MB. Free memory was 47.2 MB in the beginning and 37.6 MB in the end (delta: 9.6 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 07:01:34,560 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 07:01:34,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba575b98-bad8-4f6f-8dd1-33345365be2b/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...