./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89a7eeb30a66b8853c8b2fd1deb829ff9222bf3c ................................................................................................................................................................................................................................................................................................................................................................................................................. 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89a7eeb30a66b8853c8b2fd1deb829ff9222bf3c ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:16:57,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:16:57,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:16:57,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:16:57,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:16:57,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:16:57,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:16:57,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:16:57,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:16:57,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:16:57,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:16:57,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:16:57,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:16:57,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:16:57,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:16:57,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:16:57,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:16:57,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:16:57,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:16:57,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:16:57,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:16:57,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:16:57,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:16:57,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:16:57,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:16:57,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:16:57,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:16:57,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:16:57,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:16:57,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:16:57,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:16:57,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:16:57,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:16:57,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:16:57,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:16:57,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:16:57,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:16:57,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:16:57,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:16:57,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:16:57,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:16:57,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:16:57,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:16:57,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:16:57,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:16:57,854 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:16:57,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:16:57,855 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:16:57,855 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:16:57,855 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:16:57,855 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:16:57,856 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:16:57,856 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:16:57,856 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:16:57,856 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:16:57,857 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:16:57,857 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:16:57,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:16:57,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:16:57,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:16:57,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:16:57,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:16:57,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:16:57,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:16:57,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:16:57,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:16:57,860 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:16:57,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:16:57,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:16:57,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:16:57,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:16:57,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:16:57,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:16:57,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:16:57,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:16:57,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:16:57,863 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:16:57,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:16:57,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:16:57,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:16:57,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:16:57,864 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89a7eeb30a66b8853c8b2fd1deb829ff9222bf3c [2021-10-16 02:16:58,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:16:58,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:16:58,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:16:58,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:16:58,218 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:16:58,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2021-10-16 02:16:58,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/2458a2c66/998b9b521d8043669e8077642e636162/FLAG09ce737db [2021-10-16 02:16:58,833 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:16:58,833 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2021-10-16 02:16:58,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/2458a2c66/998b9b521d8043669e8077642e636162/FLAG09ce737db [2021-10-16 02:16:59,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/2458a2c66/998b9b521d8043669e8077642e636162 [2021-10-16 02:16:59,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:16:59,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:16:59,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:16:59,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:16:59,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:16:59,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251f9d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59, skipping insertion in model container [2021-10-16 02:16:59,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:16:59,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:16:59,553 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2021-10-16 02:16:59,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:16:59,568 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:16:59,634 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2021-10-16 02:16:59,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:16:59,654 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:16:59,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59 WrapperNode [2021-10-16 02:16:59,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:16:59,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:16:59,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:16:59,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:16:59,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:16:59,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:16:59,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:16:59,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:16:59,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:16:59,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:16:59,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:16:59,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:16:59,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (1/1) ... [2021-10-16 02:16:59,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:16:59,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:16:59,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:16:59,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:16:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:16:59,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:16:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:16:59,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:16:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:16:59,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:16:59,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:16:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:16:59,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:16:59,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:17:01,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:17:01,278 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-16 02:17:01,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:17:01 BoogieIcfgContainer [2021-10-16 02:17:01,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:17:01,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:17:01,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:17:01,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:17:01,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:16:59" (1/3) ... [2021-10-16 02:17:01,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618e510e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:17:01, skipping insertion in model container [2021-10-16 02:17:01,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:16:59" (2/3) ... [2021-10-16 02:17:01,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618e510e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:17:01, skipping insertion in model container [2021-10-16 02:17:01,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:17:01" (3/3) ... [2021-10-16 02:17:01,302 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2021-10-16 02:17:01,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:17:01,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:17:01,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:17:01,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:17:01,376 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:17:01,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 90 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:17:01,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:17:01,404 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:17:01,405 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:17:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:17:01,411 INFO L82 PathProgramCache]: Analyzing trace with hash -572799546, now seen corresponding path program 1 times [2021-10-16 02:17:01,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:17:01,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031236754] [2021-10-16 02:17:01,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:01,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:17:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:17:01,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:01,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:17:01,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031236754] [2021-10-16 02:17:01,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031236754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:17:01,621 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:17:01,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:17:01,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929127018] [2021-10-16 02:17:01,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:17:01,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:17:01,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:17:01,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:17:01,649 INFO L87 Difference]: Start difference. First operand has 91 states, 89 states have (on average 1.7415730337078652) internal successors, (155), 90 states have internal predecessors, (155), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:17:01,682 INFO L93 Difference]: Finished difference Result 181 states and 309 transitions. [2021-10-16 02:17:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:17:01,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2021-10-16 02:17:01,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:17:01,695 INFO L225 Difference]: With dead ends: 181 [2021-10-16 02:17:01,696 INFO L226 Difference]: Without dead ends: 88 [2021-10-16 02:17:01,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:17:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-16 02:17:01,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-10-16 02:17:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 87 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:01,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 118 transitions. [2021-10-16 02:17:01,748 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 118 transitions. Word has length 13 [2021-10-16 02:17:01,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:17:01,748 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 118 transitions. [2021-10-16 02:17:01,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:01,749 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 118 transitions. [2021-10-16 02:17:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:17:01,750 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:17:01,750 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:17:01,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:17:01,751 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:17:01,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:17:01,752 INFO L82 PathProgramCache]: Analyzing trace with hash -2030303298, now seen corresponding path program 1 times [2021-10-16 02:17:01,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:17:01,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038326526] [2021-10-16 02:17:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:01,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:17:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:17:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:17:01,925 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:17:01,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038326526] [2021-10-16 02:17:01,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038326526] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:17:01,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:17:01,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:17:01,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022317092] [2021-10-16 02:17:01,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:17:01,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:17:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:17:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:17:01,932 INFO L87 Difference]: Start difference. First operand 88 states and 118 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:17:01,985 INFO L93 Difference]: Finished difference Result 168 states and 227 transitions. [2021-10-16 02:17:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:17:01,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2021-10-16 02:17:01,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:17:01,992 INFO L225 Difference]: With dead ends: 168 [2021-10-16 02:17:01,993 INFO L226 Difference]: Without dead ends: 88 [2021-10-16 02:17:01,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:17:01,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-16 02:17:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-10-16 02:17:02,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 117 transitions. [2021-10-16 02:17:02,021 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 117 transitions. Word has length 16 [2021-10-16 02:17:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:17:02,021 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 117 transitions. [2021-10-16 02:17:02,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 117 transitions. [2021-10-16 02:17:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 02:17:02,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:17:02,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:17:02,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:17:02,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:17:02,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:17:02,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1920419418, now seen corresponding path program 1 times [2021-10-16 02:17:02,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:17:02,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872037044] [2021-10-16 02:17:02,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:02,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:17:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:17:02,204 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:17:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:17:02,364 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:17:02,364 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:17:02,365 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:17:02,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:17:02,375 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:17:02,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:17:02 BoogieIcfgContainer [2021-10-16 02:17:02,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:17:02,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:17:02,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:17:02,456 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:17:02,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:17:01" (3/4) ... [2021-10-16 02:17:02,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:17:02,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:17:02,463 INFO L168 Benchmark]: Toolchain (without parser) took 3276.17 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 47.9 MB in the beginning and 79.1 MB in the end (delta: -31.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:17:02,463 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:17:02,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.39 ms. Allocated memory is still 88.1 MB. Free memory was 47.7 MB in the beginning and 58.6 MB in the end (delta: -11.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:02,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.89 ms. Allocated memory is still 88.1 MB. Free memory was 58.6 MB in the beginning and 55.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:02,466 INFO L168 Benchmark]: Boogie Preprocessor took 82.09 ms. Allocated memory is still 88.1 MB. Free memory was 55.1 MB in the beginning and 51.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:02,468 INFO L168 Benchmark]: RCFGBuilder took 1469.44 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.5 MB in the beginning and 58.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:02,469 INFO L168 Benchmark]: TraceAbstraction took 1166.94 ms. Allocated memory is still 107.0 MB. Free memory was 58.1 MB in the beginning and 79.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:02,469 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 79.1 MB in the end (delta: 763.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:17:02,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 468.39 ms. Allocated memory is still 88.1 MB. Free memory was 47.7 MB in the beginning and 58.6 MB in the end (delta: -11.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.89 ms. Allocated memory is still 88.1 MB. Free memory was 58.6 MB in the beginning and 55.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.09 ms. Allocated memory is still 88.1 MB. Free memory was 55.1 MB in the beginning and 51.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1469.44 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.5 MB in the beginning and 58.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1166.94 ms. Allocated memory is still 107.0 MB. Free memory was 58.1 MB in the beginning and 79.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.32 ms. Allocated memory is still 107.0 MB. Free memory was 79.9 MB in the beginning and 79.1 MB in the end (delta: 763.8 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: 287]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 286. 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; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L278] double x = -1.0 / 0.0; [L279] double y = __VERIFIER_nondet_double(); [L248] __int32_t hx, lx; VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L281] EXPR isinf_double(x) && isfinite_double(y) [L262] __int32_t hx; VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L281] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L281] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L283] double res = __ieee754_atan2(y, x); [L286] COND TRUE res != -pi VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L287] reach_error() VAL [aT_atan={10:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1006.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 13.7ms, AutomataDifference: 134.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 240 SDtfs, 0 SDslu, 112 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.6ms SsaConstructionTime, 267.2ms SatisfiabilityAnalysisTime, 151.1ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:17:02,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:17:05,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:17:05,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:17:05,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:17:05,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:17:05,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:17:05,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:17:05,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:17:05,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:17:05,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:17:05,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:17:05,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:17:05,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:17:05,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:17:05,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:17:05,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:17:05,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:17:05,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:17:05,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:17:05,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:17:05,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:17:05,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:17:05,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:17:05,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:17:05,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:17:05,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:17:05,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:17:05,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:17:05,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:17:05,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:17:05,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:17:05,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:17:05,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:17:05,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:17:05,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:17:05,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:17:05,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:17:05,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:17:05,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:17:05,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:17:05,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:17:05,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:17:05,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:17:05,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:17:05,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:17:05,576 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:17:05,576 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:17:05,577 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:17:05,577 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:17:05,577 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:17:05,577 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:17:05,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:17:05,581 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:17:05,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:17:05,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:17:05,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:17:05,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:17:05,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:17:05,583 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:17:05,583 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:17:05,583 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:17:05,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:17:05,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:17:05,584 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:17:05,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:17:05,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:17:05,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:17:05,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:17:05,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:17:05,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:17:05,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:17:05,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:17:05,587 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:17:05,587 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:17:05,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:17:05,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:17:05,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:17:05,588 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89a7eeb30a66b8853c8b2fd1deb829ff9222bf3c [2021-10-16 02:17:06,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:17:06,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:17:06,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:17:06,063 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:17:06,064 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:17:06,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2021-10-16 02:17:06,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/1521392a5/24d91d5bf6714e3e8ee51be5b6c4c410/FLAGb5157f6d9 [2021-10-16 02:17:06,777 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:17:06,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c [2021-10-16 02:17:06,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/1521392a5/24d91d5bf6714e3e8ee51be5b6c4c410/FLAGb5157f6d9 [2021-10-16 02:17:07,043 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/data/1521392a5/24d91d5bf6714e3e8ee51be5b6c4c410 [2021-10-16 02:17:07,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:17:07,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:17:07,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:17:07,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:17:07,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:17:07,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29468df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07, skipping insertion in model container [2021-10-16 02:17:07,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:17:07,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:17:07,340 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2021-10-16 02:17:07,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:17:07,361 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:17:07,477 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_6dc4f74c-263b-4d50-ab49-63fa49e290e4/sv-benchmarks/c/float-newlib/double_req_bl_0682a.c[6875,6888] [2021-10-16 02:17:07,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:17:07,515 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:17:07,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07 WrapperNode [2021-10-16 02:17:07,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:17:07,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:17:07,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:17:07,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:17:07,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:17:07,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:17:07,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:17:07,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:17:07,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:17:07,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:17:07,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:17:07,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:17:07,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (1/1) ... [2021-10-16 02:17:07,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:17:07,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:17:07,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:17:07,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:17:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-16 02:17:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-16 02:17:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:17:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:17:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-16 02:17:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:17:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:17:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:17:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:17:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:17:48,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:17:48,129 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-16 02:17:48,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:17:48 BoogieIcfgContainer [2021-10-16 02:17:48,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:17:48,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:17:48,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:17:48,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:17:48,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:17:07" (1/3) ... [2021-10-16 02:17:48,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fc3233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:17:48, skipping insertion in model container [2021-10-16 02:17:48,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:17:07" (2/3) ... [2021-10-16 02:17:48,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fc3233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:17:48, skipping insertion in model container [2021-10-16 02:17:48,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:17:48" (3/3) ... [2021-10-16 02:17:48,159 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0682a.c [2021-10-16 02:17:48,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:17:48,169 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:17:48,258 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:17:48,265 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:17:48,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:17:48,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 122 states have (on average 1.6967213114754098) internal successors, (207), 123 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:17:48,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 02:17:48,295 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:17:48,295 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:17:48,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:17:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:17:48,302 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2021-10-16 02:17:48,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:17:48,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964347883] [2021-10-16 02:17:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:17:48,320 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:17:48,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:17:48,324 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:17:48,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:17:48,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:17:48,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:17:48,650 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-16 02:17:48,655 INFO L168 Benchmark]: Toolchain (without parser) took 41604.41 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 45.1 MB in the beginning and 49.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:48,656 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 44.6 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:17:48,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.54 ms. Allocated memory is still 62.9 MB. Free memory was 44.9 MB in the beginning and 28.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:48,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.77 ms. Allocated memory is still 62.9 MB. Free memory was 28.8 MB in the beginning and 44.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:48,658 INFO L168 Benchmark]: Boogie Preprocessor took 141.33 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 40.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:48,658 INFO L168 Benchmark]: RCFGBuilder took 40347.90 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 40.5 MB in the beginning and 60.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:48,659 INFO L168 Benchmark]: TraceAbstraction took 502.82 ms. Allocated memory is still 81.8 MB. Free memory was 59.9 MB in the beginning and 49.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:17:48,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 44.6 MB in the end (delta: 53.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 464.54 ms. Allocated memory is still 62.9 MB. Free memory was 44.9 MB in the beginning and 28.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 137.77 ms. Allocated memory is still 62.9 MB. Free memory was 28.8 MB in the beginning and 44.2 MB in the end (delta: -15.5 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 141.33 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 40.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 40347.90 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 40.5 MB in the beginning and 60.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 502.82 ms. Allocated memory is still 81.8 MB. Free memory was 59.9 MB in the beginning and 49.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:17:48,908 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-16 02:17:48,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dc4f74c-263b-4d50-ab49-63fa49e290e4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...