./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 --- 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-4e7fbc6 [2022-11-23 15:00:40,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:00:40,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:00:40,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:00:40,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:00:40,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:00:40,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:00:40,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:00:40,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:00:40,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:00:40,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:00:40,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:00:40,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:00:40,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:00:40,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:00:40,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:00:40,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:00:40,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:00:40,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:00:40,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:00:40,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:00:40,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:00:40,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:00:40,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:00:40,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:00:40,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:00:40,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:00:40,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:00:40,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:00:40,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:00:40,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:00:40,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:00:40,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:00:40,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:00:40,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:00:40,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:00:40,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:00:40,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:00:40,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:00:40,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:00:40,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:00:40,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:00:40,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:00:40,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:00:40,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:00:40,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:00:40,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:00:40,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:00:40,261 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:00:40,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:00:40,265 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:00:40,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:00:40,266 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:00:40,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:00:40,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:00:40,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:00:40,268 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:00:40,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:00:40,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:00:40,269 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:00:40,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:00:40,271 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:00:40,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:00:40,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:00:40,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:00:40,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:00:40,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:00:40,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:00:40,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:00:40,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:00:40,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:00:40,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:00:40,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:00:40,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:00:40,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:00:40,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:00:40,278 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:00:40,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:00:40,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:00:40,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:00:40,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:00:40,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:00:40,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:00:40,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2022-11-23 15:00:40,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:00:40,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:00:40,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:00:40,628 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:00:40,628 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:00:40,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2022-11-23 15:00:43,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:00:44,080 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:00:44,080 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2022-11-23 15:00:44,088 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data/3c16839e8/675edf5892644d2c9b95fc93a6d4abea/FLAGdd0a1713e [2022-11-23 15:00:44,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data/3c16839e8/675edf5892644d2c9b95fc93a6d4abea [2022-11-23 15:00:44,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:00:44,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:00:44,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:00:44,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:00:44,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:00:44,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e51a961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44, skipping insertion in model container [2022-11-23 15:00:44,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:00:44,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:00:44,338 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2022-11-23 15:00:44,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:00:44,353 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:00:44,379 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2022-11-23 15:00:44,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:00:44,393 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:00:44,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44 WrapperNode [2022-11-23 15:00:44,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:00:44,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:00:44,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:00:44,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:00:44,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,441 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2022-11-23 15:00:44,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:00:44,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:00:44,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:00:44,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:00:44,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:00:44,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:00:44,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:00:44,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:00:44,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (1/1) ... [2022-11-23 15:00:44,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:00:44,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:00:44,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:00:44,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:00:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:00:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:00:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:00:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-23 15:00:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:00:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-23 15:00:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:00:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:00:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:00:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:00:44,655 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:00:44,657 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:00:44,904 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:00:45,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:00:45,189 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 15:00:45,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:45 BoogieIcfgContainer [2022-11-23 15:00:45,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:00:45,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:00:45,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:00:45,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:00:45,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:00:44" (1/3) ... [2022-11-23 15:00:45,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b584bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:45, skipping insertion in model container [2022-11-23 15:00:45,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:44" (2/3) ... [2022-11-23 15:00:45,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b584bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:45, skipping insertion in model container [2022-11-23 15:00:45,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:45" (3/3) ... [2022-11-23 15:00:45,200 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2022-11-23 15:00:45,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:00:45,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:00:45,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:00:45,284 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77bdb0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:00:45,284 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:00:45,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 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) [2022-11-23 15:00:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:00:45,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:45,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:45,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:45,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2115232528, now seen corresponding path program 1 times [2022-11-23 15:00:45,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:45,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60658199] [2022-11-23 15:00:45,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:45,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:00:45,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:00:45,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60658199] [2022-11-23 15:00:45,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60658199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:45,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:45,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:00:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572026531] [2022-11-23 15:00:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:45,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:00:45,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:00:45,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:00:45,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:00:45,511 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-23 15:00:45,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:45,553 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2022-11-23 15:00:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:00:45,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-23 15:00:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:45,565 INFO L225 Difference]: With dead ends: 35 [2022-11-23 15:00:45,566 INFO L226 Difference]: Without dead ends: 16 [2022-11-23 15:00:45,569 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 [2022-11-23 15:00:45,573 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:45,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:00:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-23 15:00:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-23 15:00:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2022-11-23 15:00:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-23 15:00:45,663 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2022-11-23 15:00:45,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:45,664 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-23 15:00:45,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-23 15:00:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-23 15:00:45,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:00:45,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:45,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:45,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:00:45,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:45,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:45,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1956640959, now seen corresponding path program 1 times [2022-11-23 15:00:45,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:00:45,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057286196] [2022-11-23 15:00:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:45,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:00:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:00:45,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:00:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:00:45,788 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:00:45,788 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:00:45,790 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:00:45,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:00:45,796 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:00:45,800 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:00:45,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:00:45 BoogieIcfgContainer [2022-11-23 15:00:45,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:00:45,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:00:45,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:00:45,825 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:00:45,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:45" (3/4) ... [2022-11-23 15:00:45,829 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:00:45,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:00:45,830 INFO L158 Benchmark]: Toolchain (without parser) took 1715.32ms. Allocated memory is still 148.9MB. Free memory was 118.3MB in the beginning and 110.1MB in the end (delta: 8.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-11-23 15:00:45,831 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 159.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:00:45,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.00ms. Allocated memory is still 148.9MB. Free memory was 118.3MB in the beginning and 107.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 15:00:45,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.73ms. Allocated memory is still 148.9MB. Free memory was 107.2MB in the beginning and 105.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:00:45,833 INFO L158 Benchmark]: Boogie Preprocessor took 55.65ms. Allocated memory is still 148.9MB. Free memory was 105.1MB in the beginning and 103.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:00:45,833 INFO L158 Benchmark]: RCFGBuilder took 687.91ms. Allocated memory is still 148.9MB. Free memory was 103.6MB in the beginning and 79.1MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:00:45,834 INFO L158 Benchmark]: TraceAbstraction took 630.71ms. Allocated memory is still 148.9MB. Free memory was 78.4MB in the beginning and 110.1MB in the end (delta: -31.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:00:45,834 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 148.9MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:00:45,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 159.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.00ms. Allocated memory is still 148.9MB. Free memory was 118.3MB in the beginning and 107.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.73ms. Allocated memory is still 148.9MB. Free memory was 107.2MB in the beginning and 105.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.65ms. Allocated memory is still 148.9MB. Free memory was 105.1MB in the beginning and 103.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 687.91ms. Allocated memory is still 148.9MB. Free memory was 103.6MB in the beginning and 79.1MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 630.71ms. Allocated memory is still 148.9MB. Free memory was 78.4MB in the beginning and 110.1MB in the end (delta: -31.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 148.9MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 98]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L93] double x = 0.0; [L94] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, unknown-#in~x-unknown=0, x=0] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1127219200, i1=-1, j0=52, unknown-#in~x-unknown=0, x=0] [L31] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1127219200, i1=-1, j0=52, unknown-#in~x-unknown=0, x=0] [L53] COND TRUE j0 > 51 [L54] COND FALSE !(j0 == 0x400) [L57] return x; VAL [\result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1127219200, i1=-1, j0=52, unknown-#in~x-unknown=0, x=0] [L94] RET, EXPR ceil_double(x) [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] [L98] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 6 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=18occurred 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, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2022-11-23 15:00:45,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 --- 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-4e7fbc6 [2022-11-23 15:00:48,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:00:48,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:00:48,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:00:48,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:00:48,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:00:48,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:00:48,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:00:48,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:00:48,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:00:48,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:00:48,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:00:48,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:00:48,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:00:48,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:00:48,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:00:48,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:00:48,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:00:48,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:00:48,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:00:48,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:00:48,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:00:48,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:00:48,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:00:48,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:00:48,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:00:48,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:00:48,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:00:48,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:00:48,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:00:48,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:00:48,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:00:48,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:00:48,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:00:48,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:00:48,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:00:48,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:00:48,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:00:48,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:00:48,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:00:48,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:00:48,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 15:00:48,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:00:48,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:00:48,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:00:48,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:00:48,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:00:48,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:00:48,317 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:00:48,317 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:00:48,317 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:00:48,317 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:00:48,318 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:00:48,318 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:00:48,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:00:48,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:00:48,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:00:48,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:00:48,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:00:48,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:00:48,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:00:48,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:00:48,321 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:00:48,321 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:00:48,322 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:00:48,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:00:48,322 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:00:48,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:00:48,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:00:48,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:00:48,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:00:48,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:00:48,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:00:48,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:00:48,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:00:48,325 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:00:48,325 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:00:48,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:00:48,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:00:48,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:00:48,326 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2022-11-23 15:00:48,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:00:48,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:00:48,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:00:48,727 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:00:48,727 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:00:48,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2022-11-23 15:00:51,950 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:00:52,177 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:00:52,178 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2022-11-23 15:00:52,184 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data/91ea2ebb3/f4bc833a557e468fb9b59c0e01c90519/FLAG1e1426f41 [2022-11-23 15:00:52,201 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/data/91ea2ebb3/f4bc833a557e468fb9b59c0e01c90519 [2022-11-23 15:00:52,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:00:52,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:00:52,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:00:52,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:00:52,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:00:52,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc0ed1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52, skipping insertion in model container [2022-11-23 15:00:52,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:00:52,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:00:52,418 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2022-11-23 15:00:52,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:00:52,447 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:00:52,500 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2022-11-23 15:00:52,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:00:52,525 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:00:52,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52 WrapperNode [2022-11-23 15:00:52,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:00:52,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:00:52,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:00:52,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:00:52,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,606 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2022-11-23 15:00:52,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:00:52,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:00:52,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:00:52,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:00:52,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:00:52,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:00:52,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:00:52,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:00:52,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (1/1) ... [2022-11-23 15:00:52,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:00:52,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:00:52,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:00:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:00:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:00:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-23 15:00:52,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-23 15:00:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:00:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:00:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 15:00:52,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:00:52,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:00:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 15:00:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:00:52,917 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:00:52,919 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:00:54,354 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:00:54,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:00:54,361 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 15:00:54,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:54 BoogieIcfgContainer [2022-11-23 15:00:54,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:00:54,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:00:54,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:00:54,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:00:54,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:00:52" (1/3) ... [2022-11-23 15:00:54,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cd1858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:54, skipping insertion in model container [2022-11-23 15:00:54,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:52" (2/3) ... [2022-11-23 15:00:54,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55cd1858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:54, skipping insertion in model container [2022-11-23 15:00:54,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:54" (3/3) ... [2022-11-23 15:00:54,372 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2022-11-23 15:00:54,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:00:54,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:00:54,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:00:54,465 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2879b96b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:00:54,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:00:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2022-11-23 15:00:54,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:00:54,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:54,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:54,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:54,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:54,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2022-11-23 15:00:54,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:00:54,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542439615] [2022-11-23 15:00:54,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:54,500 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 [2022-11-23 15:00:54,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:00:54,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:00:54,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:00:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:54,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 15:00:54,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:00:54,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:00:54,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:00:54,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:00:54,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542439615] [2022-11-23 15:00:54,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542439615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:54,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:54,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:00:54,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835394552] [2022-11-23 15:00:54,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:54,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:00:54,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:00:54,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:00:54,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:00:54,716 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2022-11-23 15:00:54,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:54,744 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2022-11-23 15:00:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:00:54,746 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 [2022-11-23 15:00:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:54,756 INFO L225 Difference]: With dead ends: 64 [2022-11-23 15:00:54,757 INFO L226 Difference]: Without dead ends: 30 [2022-11-23 15:00:54,761 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 [2022-11-23 15:00:54,768 INFO L413 NwaCegarLoop]: 47 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, 47 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 [2022-11-23 15:00:54,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:00:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-23 15:00:54,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-23 15:00:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 29 states have internal predecessors, (44), 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) [2022-11-23 15:00:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2022-11-23 15:00:54,813 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2022-11-23 15:00:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:54,814 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2022-11-23 15:00:54,814 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) [2022-11-23 15:00:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2022-11-23 15:00:54,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:00:54,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:54,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:54,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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)] Ended with exit code 0 [2022-11-23 15:00:55,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:00:55,030 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:55,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2022-11-23 15:00:55,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:00:55,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149772484] [2022-11-23 15:00:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:55,038 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 [2022-11-23 15:00:55,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:00:55,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:00:55,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:00:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:00:55,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 15:00:55,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:00:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:00:55,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:00:55,328 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:00:55,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149772484] [2022-11-23 15:00:55,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149772484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:00:55,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:00:55,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:00:55,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740124745] [2022-11-23 15:00:55,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:00:55,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:00:55,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:00:55,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:00:55,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:00:55,332 INFO L87 Difference]: Start difference. First operand 30 states and 44 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) [2022-11-23 15:00:55,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:00:55,698 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2022-11-23 15:00:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:00:55,700 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 [2022-11-23 15:00:55,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:00:55,700 INFO L225 Difference]: With dead ends: 44 [2022-11-23 15:00:55,700 INFO L226 Difference]: Without dead ends: 24 [2022-11-23 15:00:55,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:00:55,702 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 41 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:00:55,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 21 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:00:55,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-23 15:00:55,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2022-11-23 15:00:55,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-11-23 15:00:55,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-23 15:00:55,709 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2022-11-23 15:00:55,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:00:55,709 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-23 15:00:55,710 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) [2022-11-23 15:00:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-23 15:00:55,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 15:00:55,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:00:55,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:00:55,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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)] Forceful destruction successful, exit code 0 [2022-11-23 15:00:55,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:00:55,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:00:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:00:55,925 INFO L85 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2022-11-23 15:00:55,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:00:55,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080140550] [2022-11-23 15:00:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:00:55,926 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 [2022-11-23 15:00:55,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:00:55,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:00:55,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:00:56,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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)] Forceful destruction successful, exit code 139 [2022-11-23 15:00:56,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:00:56,290 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) 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:336) 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) 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 [2022-11-23 15:00:56,293 INFO L158 Benchmark]: Toolchain (without parser) took 4088.03ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 46.7MB in the beginning and 60.1MB in the end (delta: -13.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-23 15:00:56,294 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:00:56,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.68ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 34.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:00:56,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.18ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 32.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:00:56,297 INFO L158 Benchmark]: Boogie Preprocessor took 33.17ms. Allocated memory is still 69.2MB. Free memory was 32.8MB in the beginning and 31.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:00:56,302 INFO L158 Benchmark]: RCFGBuilder took 1721.76ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 31.1MB in the beginning and 60.7MB in the end (delta: -29.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-23 15:00:56,303 INFO L158 Benchmark]: TraceAbstraction took 1927.93ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 60.1MB in the end (delta: 8.3kB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2022-11-23 15:00:56,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.68ms. Allocated memory is still 69.2MB. Free memory was 46.5MB in the beginning and 34.7MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.18ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 32.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.17ms. Allocated memory is still 69.2MB. Free memory was 32.8MB in the beginning and 31.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1721.76ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 31.1MB in the beginning and 60.7MB in the end (delta: -29.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1927.93ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 60.1MB in the end (delta: 8.3kB). Peak memory consumption was 1.2MB. 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) 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. [2022-11-23 15:00:56,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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 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_7169b881-c27c-4d79-b44f-f1f0e21367b0/bin/utaipan-Q6hlc19bkW/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) with exit command (exit)) Received EOF on stdin. No stderr output.