./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0682c5b0aa15583147a7e08f281b31c84f28e6f8db41872cc8e834f12ff21a47 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:24:18,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:24:18,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:24:18,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:24:18,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:24:18,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:24:18,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:24:18,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:24:18,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:24:18,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:24:18,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:24:18,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:24:18,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:24:18,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:24:18,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:24:18,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:24:18,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:24:18,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:24:18,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:24:18,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:24:18,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:24:18,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:24:18,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:24:18,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:24:18,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:24:18,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:24:18,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:24:18,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:24:18,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:24:18,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:24:18,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:24:18,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:24:18,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:24:18,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:24:18,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:24:18,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:24:18,949 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:24:18,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:24:18,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:24:18,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:24:18,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:24:18,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:24:18,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:24:18,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:24:18,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:24:18,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:24:18,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:24:18,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:24:18,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:24:18,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:24:18,978 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:24:18,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:24:18,978 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:24:18,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:24:18,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:24:18,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:24:18,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:24:18,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:24:18,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:24:18,980 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:24:18,981 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0682c5b0aa15583147a7e08f281b31c84f28e6f8db41872cc8e834f12ff21a47 [2022-12-13 13:24:19,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:24:19,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:24:19,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:24:19,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:24:19,193 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:24:19,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2022-12-13 13:24:21,742 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:24:21,873 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:24:21,873 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2022-12-13 13:24:21,878 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data/58be97ced/54f54e986be54cd1a3f7efe0cb9e46c8/FLAGa4f4d17ca [2022-12-13 13:24:21,889 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data/58be97ced/54f54e986be54cd1a3f7efe0cb9e46c8 [2022-12-13 13:24:21,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:24:21,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:24:21,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:24:21,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:24:21,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:24:21,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:24:21" (1/1) ... [2022-12-13 13:24:21,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ec6151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:21, skipping insertion in model container [2022-12-13 13:24:21,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:24:21" (1/1) ... [2022-12-13 13:24:21,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:24:21,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:24:22,065 WARN L237 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_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2022-12-13 13:24:22,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:24:22,080 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:24:22,109 WARN L237 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_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2022-12-13 13:24:22,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:24:22,121 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:24:22,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22 WrapperNode [2022-12-13 13:24:22,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:24:22,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:24:22,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:24:22,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:24:22,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,160 INFO L138 Inliner]: procedures = 19, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2022-12-13 13:24:22,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:24:22,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:24:22,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:24:22,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:24:22,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,193 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:24:22,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:24:22,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:24:22,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:24:22,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (1/1) ... [2022-12-13 13:24:22,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:24:22,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:24:22,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:24:22,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:24:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:24:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:24:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:24:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-12-13 13:24:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:24:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-13 13:24:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:24:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:24:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:24:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-12-13 13:24:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:24:22,342 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:24:22,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:24:22,518 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:24:22,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:24:22,523 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 13:24:22,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:22 BoogieIcfgContainer [2022-12-13 13:24:22,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:24:22,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:24:22,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:24:22,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:24:22,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:24:21" (1/3) ... [2022-12-13 13:24:22,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4153b79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:24:22, skipping insertion in model container [2022-12-13 13:24:22,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:22" (2/3) ... [2022-12-13 13:24:22,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4153b79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:24:22, skipping insertion in model container [2022-12-13 13:24:22,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:22" (3/3) ... [2022-12-13 13:24:22,530 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2022-12-13 13:24:22,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:24:22,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:24:22,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:24:22,585 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@caebb51, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:24:22,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:24:22,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 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) [2022-12-13 13:24:22,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:24:22,593 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:24:22,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:24:22,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:24:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:24:22,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times [2022-12-13 13:24:22,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:24:22,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946314203] [2022-12-13 13:24:22,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:24:22,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:24:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:24:22,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:24:22,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:24:22,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946314203] [2022-12-13 13:24:22,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946314203] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:24:22,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:24:22,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:24:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815081708] [2022-12-13 13:24:22,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:24:22,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:24:22,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:24:22,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:24:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:24:22,746 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:24:22,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:24:22,764 INFO L93 Difference]: Finished difference Result 68 states and 106 transitions. [2022-12-13 13:24:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:24:22,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 13:24:22,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:24:22,773 INFO L225 Difference]: With dead ends: 68 [2022-12-13 13:24:22,773 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 13:24:22,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:24:22,778 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:24:22,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:24:22,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 13:24:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-12-13 13:24:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 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) [2022-12-13 13:24:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2022-12-13 13:24:22,811 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 10 [2022-12-13 13:24:22,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:24:22,811 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2022-12-13 13:24:22,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:24:22,811 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-12-13 13:24:22,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:24:22,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:24:22,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:24:22,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:24:22,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:24:22,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:24:22,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times [2022-12-13 13:24:22,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:24:22,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587300614] [2022-12-13 13:24:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:24:22,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:24:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:24:22,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:24:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:24:22,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:24:22,914 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:24:22,915 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:24:22,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:24:22,919 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:24:22,922 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:24:22,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:24:22 BoogieIcfgContainer [2022-12-13 13:24:22,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:24:22,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:24:22,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:24:22,949 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:24:22,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:22" (3/4) ... [2022-12-13 13:24:22,952 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:24:22,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:24:22,953 INFO L158 Benchmark]: Toolchain (without parser) took 1060.71ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 90.7MB in the end (delta: 2.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 13:24:22,953 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:24:22,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.30ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 81.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:24:22,954 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.85ms. Allocated memory is still 130.0MB. Free memory was 81.1MB in the beginning and 79.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:24:22,954 INFO L158 Benchmark]: Boogie Preprocessor took 37.77ms. Allocated memory is still 130.0MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:24:22,955 INFO L158 Benchmark]: RCFGBuilder took 324.98ms. Allocated memory is still 130.0MB. Free memory was 76.9MB in the beginning and 61.3MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 13:24:22,955 INFO L158 Benchmark]: TraceAbstraction took 421.54ms. Allocated memory is still 130.0MB. Free memory was 60.5MB in the beginning and 90.7MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:24:22,956 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 130.0MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:24:22,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.30ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 81.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.85ms. Allocated memory is still 130.0MB. Free memory was 81.1MB in the beginning and 79.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.77ms. Allocated memory is still 130.0MB. Free memory was 79.0MB in the beginning and 76.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.98ms. Allocated memory is still 130.0MB. Free memory was 76.9MB in the beginning and 61.3MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 421.54ms. Allocated memory is still 130.0MB. Free memory was 60.5MB in the beginning and 90.7MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 130.0MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 144]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L139] float x = 0.0f; [L140] CALL, EXPR atan_float(x) [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L65] COND TRUE ix >= 0x50800000 VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [\old(x)=0, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L140] RET, EXPR atan_float(x) [L140] float res = atan_float(x); [L143] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L143] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L144] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000001, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:24:22,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0682c5b0aa15583147a7e08f281b31c84f28e6f8db41872cc8e834f12ff21a47 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:24:24,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:24:24,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:24:24,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:24:24,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:24:24,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:24:24,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:24:24,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:24:24,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:24:24,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:24:24,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:24:24,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:24:24,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:24:24,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:24:24,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:24:24,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:24:24,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:24:24,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:24:24,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:24:24,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:24:24,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:24:24,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:24:24,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:24:24,757 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:24:24,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:24:24,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:24:24,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:24:24,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:24:24,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:24:24,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:24:24,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:24:24,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:24:24,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:24:24,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:24:24,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:24:24,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:24:24,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:24:24,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:24:24,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:24:24,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:24:24,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:24:24,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 13:24:24,792 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:24:24,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:24:24,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:24:24,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:24:24,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:24:24,793 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:24:24,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:24:24,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:24:24,793 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:24:24,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:24:24,794 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:24:24,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:24:24,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:24:24,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:24:24,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:24:24,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:24:24,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:24:24,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:24:24,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:24:24,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:24:24,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:24:24,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:24:24,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:24:24,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:24:24,798 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:24:24,798 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:24:24,798 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0682c5b0aa15583147a7e08f281b31c84f28e6f8db41872cc8e834f12ff21a47 [2022-12-13 13:24:25,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:24:25,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:24:25,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:24:25,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:24:25,028 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:24:25,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2022-12-13 13:24:27,690 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:24:27,826 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:24:27,827 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2022-12-13 13:24:27,832 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data/616a43a3c/47157e08b97e45318d926efa4078e20a/FLAGbbabcca4b [2022-12-13 13:24:27,842 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/data/616a43a3c/47157e08b97e45318d926efa4078e20a [2022-12-13 13:24:27,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:24:27,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:24:27,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:24:27,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:24:27,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:24:27,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:24:27" (1/1) ... [2022-12-13 13:24:27,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70908542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:27, skipping insertion in model container [2022-12-13 13:24:27,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:24:27" (1/1) ... [2022-12-13 13:24:27,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:24:27,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:24:27,991 WARN L237 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_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2022-12-13 13:24:27,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:24:28,006 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:24:28,031 WARN L237 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_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2022-12-13 13:24:28,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:24:28,053 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:24:28,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28 WrapperNode [2022-12-13 13:24:28,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:24:28,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:24:28,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:24:28,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:24:28,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,091 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2022-12-13 13:24:28,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:24:28,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:24:28,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:24:28,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:24:28,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,126 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:24:28,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:24:28,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:24:28,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:24:28,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (1/1) ... [2022-12-13 13:24:28,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:24:28,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:24:28,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:24:28,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:24:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:24:28,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 13:24:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:24:28,284 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:24:28,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:24:40,312 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:24:40,317 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:24:40,317 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 13:24:40,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:40 BoogieIcfgContainer [2022-12-13 13:24:40,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:24:40,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:24:40,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:24:40,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:24:40,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:24:27" (1/3) ... [2022-12-13 13:24:40,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3105e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:24:40, skipping insertion in model container [2022-12-13 13:24:40,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:24:28" (2/3) ... [2022-12-13 13:24:40,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3105e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:24:40, skipping insertion in model container [2022-12-13 13:24:40,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:24:40" (3/3) ... [2022-12-13 13:24:40,326 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2022-12-13 13:24:40,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:24:40,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:24:40,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:24:40,381 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b6d4d2e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:24:40,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:24:40,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 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) [2022-12-13 13:24:40,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:24:40,388 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:24:40,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:24:40,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:24:40,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:24:40,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1030213693, now seen corresponding path program 1 times [2022-12-13 13:24:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:24:40,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796726210] [2022-12-13 13:24:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:24:40,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:24:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:24:40,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:24:40,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 13:24:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:24:41,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:24:41,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:24:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:24:41,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:24:41,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:24:41,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796726210] [2022-12-13 13:24:41,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796726210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:24:41,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:24:41,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:24:41,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720577607] [2022-12-13 13:24:41,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:24:41,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:24:41,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:24:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:24:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:24:41,212 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.6363636363636365) internal successors, (54), 34 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:24:41,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:24:41,225 INFO L93 Difference]: Finished difference Result 68 states and 106 transitions. [2022-12-13 13:24:41,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:24:41,226 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-13 13:24:41,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:24:41,232 INFO L225 Difference]: With dead ends: 68 [2022-12-13 13:24:41,232 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 13:24:41,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:24:41,236 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:24:41,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:24:41,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 13:24:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-12-13 13:24:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 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) [2022-12-13 13:24:41,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2022-12-13 13:24:41,259 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 10 [2022-12-13 13:24:41,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:24:41,259 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2022-12-13 13:24:41,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:24:41,259 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-12-13 13:24:41,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:24:41,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:24:41,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:24:41,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:24:41,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:24:41,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:24:41,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:24:41,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1305093504, now seen corresponding path program 1 times [2022-12-13 13:24:41,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:24:41,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141595423] [2022-12-13 13:24:41,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:24:41,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:24:41,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:24:41,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:24:41,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 13:24:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:24:42,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 13:24:42,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:24:42,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:24:42,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:24:42,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:24:42,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141595423] [2022-12-13 13:24:42,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141595423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:24:42,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:24:42,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:24:42,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525424273] [2022-12-13 13:24:42,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:24:42,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:24:42,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:24:42,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:24:42,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:24:42,701 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:24:45,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 13:24:47,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:24:49,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:24:51,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:24:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:24:51,813 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-12-13 13:24:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:24:51,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-13 13:24:51,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:24:51,830 INFO L225 Difference]: With dead ends: 53 [2022-12-13 13:24:51,830 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 13:24:51,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:24:51,832 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 49 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:24:51,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 8.9s Time] [2022-12-13 13:24:51,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 13:24:51,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 21. [2022-12-13 13:24:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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) [2022-12-13 13:24:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-12-13 13:24:51,836 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 11 [2022-12-13 13:24:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:24:51,837 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-12-13 13:24:51,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:24:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-12-13 13:24:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 13:24:51,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:24:51,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:24:51,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 13:24:52,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:24:52,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:24:52,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:24:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash -414091197, now seen corresponding path program 1 times [2022-12-13 13:24:52,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:24:52,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390792992] [2022-12-13 13:24:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:24:52,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:24:52,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:24:52,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:24:52,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 13:24:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:24:52,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:24:52,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:24:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:24:53,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:24:53,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:24:53,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390792992] [2022-12-13 13:24:53,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1390792992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:24:53,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:24:53,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:24:53,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476981647] [2022-12-13 13:24:53,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:24:53,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:24:53,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:24:53,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:24:53,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:24:53,216 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2022-12-13 13:24:56,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:24:58,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:25:00,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 13:25:02,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:25:04,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 13:25:04,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:04,401 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-12-13 13:25:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:25:04,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2022-12-13 13:25:04,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:25:04,403 INFO L225 Difference]: With dead ends: 33 [2022-12-13 13:25:04,403 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 13:25:04,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:25:04,404 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 26 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:25:04,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 55 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2022-12-13 13:25:04,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 13:25:04,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-12-13 13:25:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2022-12-13 13:25:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-12-13 13:25:04,411 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 13 [2022-12-13 13:25:04,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:25:04,411 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-12-13 13:25:04,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2022-12-13 13:25:04,411 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-12-13 13:25:04,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 13:25:04,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:25:04,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:04,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 13:25:04,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:25:04,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:25:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:04,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1850164023, now seen corresponding path program 1 times [2022-12-13 13:25:04,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:25:04,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910630533] [2022-12-13 13:25:04,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:04,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:25:04,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:25:04,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:25:04,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 13:25:05,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 139 [2022-12-13 13:25:05,335 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: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-12-13 13:25:05,338 INFO L158 Benchmark]: Toolchain (without parser) took 37492.76ms. Allocated memory is still 79.7MB. Free memory was 58.3MB in the beginning and 55.6MB in the end (delta: 2.7MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-13 13:25:05,338 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:25:05,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.72ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 44.9MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:25:05,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.09ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 42.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:25:05,339 INFO L158 Benchmark]: Boogie Preprocessor took 40.71ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:25:05,340 INFO L158 Benchmark]: RCFGBuilder took 12185.43ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 40.2MB in the end (delta: -189.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:25:05,340 INFO L158 Benchmark]: TraceAbstraction took 25016.64ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 55.6MB in the end (delta: -16.1MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-12-13 13:25:05,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.72ms. Allocated memory is still 79.7MB. Free memory was 58.1MB in the beginning and 44.9MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.09ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 42.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.71ms. Allocated memory is still 79.7MB. Free memory was 42.3MB in the beginning and 40.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12185.43ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 40.2MB in the end (delta: -189.5kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25016.64ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 55.6MB in the end (delta: -16.1MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-13 13:25:05,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04986a5e-fa01-4eb8-8f0a-c92743b6e8c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.