./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba --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 b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f --- 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-b5237d8 [2022-11-22 02:16:30,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:16:30,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:16:30,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:16:30,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:16:30,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:16:30,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:16:30,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:16:30,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:16:30,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:16:30,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:16:30,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:16:30,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:16:30,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:16:30,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:16:30,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:16:30,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:16:30,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:16:30,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:16:30,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:16:30,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:16:30,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:16:30,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:16:30,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:16:30,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:16:30,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:16:30,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:16:30,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:16:30,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:16:30,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:16:30,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:16:30,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:16:30,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:16:30,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:16:30,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:16:30,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:16:30,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:16:30,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:16:30,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:16:30,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:16:30,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:16:30,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:16:30,505 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:16:30,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:16:30,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:16:30,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:16:30,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:16:30,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:16:30,508 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:16:30,508 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:16:30,509 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:16:30,509 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:16:30,510 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:16:30,510 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:16:30,510 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:16:30,511 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:16:30,511 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:16:30,511 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:16:30,512 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:16:30,512 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:16:30,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:16:30,513 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:16:30,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:16:30,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:16:30,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:16:30,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:16:30,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:16:30,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:16:30,515 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:16:30,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:16:30,515 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:16:30,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:16:30,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:16:30,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:16:30,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:30,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:16:30,517 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:16:30,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:16:30,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:16:30,518 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:16:30,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:16:30,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:16:30,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:16:30,519 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f [2022-11-22 02:16:30,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:16:30,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:16:30,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:16:30,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:16:30,858 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:16:30,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-11-22 02:16:33,787 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:16:33,998 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:16:33,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-11-22 02:16:34,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data/d5c1177c5/58c35848ee4648f594ab76d8b0d55be6/FLAG70e193cee [2022-11-22 02:16:34,020 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data/d5c1177c5/58c35848ee4648f594ab76d8b0d55be6 [2022-11-22 02:16:34,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:16:34,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:16:34,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:34,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:16:34,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:16:34,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22415f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34, skipping insertion in model container [2022-11-22 02:16:34,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:16:34,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:16:34,229 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-11-22 02:16:34,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:34,246 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:16:34,266 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-11-22 02:16:34,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:34,286 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:16:34,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34 WrapperNode [2022-11-22 02:16:34,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:34,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:34,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:16:34,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:16:34,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,359 INFO L138 Inliner]: procedures = 18, calls = 78, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 199 [2022-11-22 02:16:34,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:34,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:16:34,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:16:34,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:16:34,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:16:34,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:16:34,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:16:34,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:16:34,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (1/1) ... [2022-11-22 02:16:34,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:34,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:34,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:16:34,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:16:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:16:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:16:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:16:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-22 02:16:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:16:34,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:16:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-22 02:16:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:16:34,681 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:16:34,683 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:16:34,948 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:16:34,976 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:16:34,976 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:16:34,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:34 BoogieIcfgContainer [2022-11-22 02:16:34,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:16:34,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:16:34,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:16:34,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:16:34,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:34" (1/3) ... [2022-11-22 02:16:34,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d45e7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:34, skipping insertion in model container [2022-11-22 02:16:35,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:34" (2/3) ... [2022-11-22 02:16:35,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d45e7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:35, skipping insertion in model container [2022-11-22 02:16:35,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:34" (3/3) ... [2022-11-22 02:16:35,005 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+nlh-reducer.c [2022-11-22 02:16:35,029 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:16:35,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:16:35,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:16:35,117 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;@140bfa9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:16:35,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:16:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 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) [2022-11-22 02:16:35,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:16:35,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:35,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:35,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:16:35,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:35,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1054039300, now seen corresponding path program 1 times [2022-11-22 02:16:35,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:35,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846793844] [2022-11-22 02:16:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:35,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:16:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:16:35,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:16:35,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846793844] [2022-11-22 02:16:35,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846793844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:16:35,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:16:35,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:16:35,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242032512] [2022-11-22 02:16:35,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:16:35,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:16:35,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:16:35,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:16:35,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:16:35,571 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 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 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-22 02:16:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:16:35,702 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2022-11-22 02:16:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:16:35,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-22 02:16:35,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:16:35,713 INFO L225 Difference]: With dead ends: 35 [2022-11-22 02:16:35,713 INFO L226 Difference]: Without dead ends: 21 [2022-11-22 02:16:35,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:16:35,719 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 37 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:16:35,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 87 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:16:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-22 02:16:35,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-22 02:16:35,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 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) [2022-11-22 02:16:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-22 02:16:35,756 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2022-11-22 02:16:35,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:16:35,757 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-22 02:16:35,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-22 02:16:35,758 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-22 02:16:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 02:16:35,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:35,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:35,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:16:35,761 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:16:35,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1037028639, now seen corresponding path program 1 times [2022-11-22 02:16:35,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:16:35,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509352522] [2022-11-22 02:16:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:35,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:16:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:16:35,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:16:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:16:35,877 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:16:35,878 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:16:35,880 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:16:35,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:16:35,886 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 02:16:35,890 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:16:35,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:16:35 BoogieIcfgContainer [2022-11-22 02:16:35,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:16:35,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:16:35,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:16:35,938 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:16:35,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:34" (3/4) ... [2022-11-22 02:16:35,942 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:16:35,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:16:35,943 INFO L158 Benchmark]: Toolchain (without parser) took 1918.90ms. Allocated memory is still 199.2MB. Free memory was 169.3MB in the beginning and 120.3MB in the end (delta: 49.0MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-22 02:16:35,943 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:16:35,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.29ms. Allocated memory is still 199.2MB. Free memory was 169.1MB in the beginning and 160.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-11-22 02:16:35,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.85ms. Allocated memory is still 199.2MB. Free memory was 160.7MB in the beginning and 158.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:16:35,950 INFO L158 Benchmark]: Boogie Preprocessor took 60.75ms. Allocated memory is still 199.2MB. Free memory was 158.6MB in the beginning and 157.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:16:35,950 INFO L158 Benchmark]: RCFGBuilder took 557.53ms. Allocated memory is still 199.2MB. Free memory was 157.6MB in the beginning and 157.0MB in the end (delta: 564.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:16:35,951 INFO L158 Benchmark]: TraceAbstraction took 953.18ms. Allocated memory is still 199.2MB. Free memory was 155.9MB in the beginning and 120.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-22 02:16:35,951 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 199.2MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:16:35,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 130.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.29ms. Allocated memory is still 199.2MB. Free memory was 169.1MB in the beginning and 160.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.85ms. Allocated memory is still 199.2MB. Free memory was 160.7MB in the beginning and 158.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.75ms. Allocated memory is still 199.2MB. Free memory was 158.6MB in the beginning and 157.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 557.53ms. Allocated memory is still 199.2MB. Free memory was 157.6MB in the beginning and 157.0MB in the end (delta: 564.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 953.18ms. Allocated memory is still 199.2MB. Free memory was 155.9MB in the beginning and 120.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 199.2MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 53]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L1] int __return_main; [L12] int __return_136; [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] float main__org[5] = { 1, 5, -10, 30, 20 }; [L21] float main__slope[5] = { 4, -15, 40, -10, 0 }; [L22] main__t = __VERIFIER_nondet_float() [L23] int main____CPAchecker_TMP_0; [L24] EXPR main__min[0] VAL [__return_136=0, __return_main=0, main__max={6:0}, main__min={7:0}, main__min[0]=58, main__org={4:0}, main__slope={5:0}] [L24] COND TRUE main__t >= (main__min[0]) [L26] EXPR main__max[4UL] VAL [__return_136=0, __return_main=0, main__max={6:0}, main__max[4UL]=59, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L26] COND TRUE main__t <= (main__max[4UL]) [L28] main____CPAchecker_TMP_0 = 1 VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L29] COND TRUE main____CPAchecker_TMP_0 != 0 [L31] main__i = 0 VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L32] COND TRUE main__i < 5UL [L34] EXPR main__max[main__i] VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__max[main__i]=57, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L34] COND TRUE main__t <= (main__max[main__i]) [L38] EXPR main__org[main__i] [L38] EXPR main__slope[main__i] [L38] EXPR main__min[main__i] [L38] EXPR main__max[main__i] [L38] EXPR main__min[main__i] [L38] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i]))) [L39] int main____CPAchecker_TMP_1; VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L40] COND FALSE !(main__z >= -10.0) VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L66] main____CPAchecker_TMP_1 = 0 VAL [__return_136=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L47] int __tmp_1; [L48] __tmp_1 = main____CPAchecker_TMP_1 [L49] int __VERIFIER_assert__cond; [L50] __VERIFIER_assert__cond = __tmp_1 VAL [__return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L51] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] [L53] reach_error() VAL [__return_136=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={6:0}, main__min={7:0}, main__org={4:0}, main__slope={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 29 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 [2022-11-22 02:16:35,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba --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 b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f --- 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-b5237d8 [2022-11-22 02:16:38,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:16:38,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:16:38,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:16:38,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:16:38,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:16:38,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:16:38,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:16:38,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:16:38,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:16:38,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:16:38,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:16:38,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:16:38,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:16:38,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:16:38,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:16:38,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:16:38,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:16:38,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:16:38,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:16:38,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:16:38,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:16:38,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:16:38,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:16:38,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:16:38,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:16:38,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:16:38,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:16:38,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:16:38,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:16:38,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:16:38,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:16:38,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:16:38,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:16:38,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:16:38,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:16:38,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:16:38,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:16:38,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:16:38,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:16:38,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:16:38,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 02:16:38,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:16:38,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:16:38,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:16:38,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:16:38,602 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:16:38,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:16:38,603 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:16:38,603 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:16:38,603 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:16:38,604 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:16:38,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:16:38,605 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:16:38,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:16:38,606 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:16:38,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:16:38,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:16:38,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:16:38,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:16:38,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:16:38,607 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:16:38,607 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:16:38,608 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:16:38,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:16:38,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:16:38,608 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:16:38,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:16:38,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:16:38,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:16:38,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:16:38,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:38,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:16:38,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:16:38,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:16:38,611 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:16:38,611 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:16:38,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:16:38,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:16:38,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:16:38,612 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b786ed311f07fa83d19e15eff80ed0c31b01d28b674f6a431fdb0a4267861a0f [2022-11-22 02:16:39,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:16:39,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:16:39,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:16:39,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:16:39,024 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:16:39,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-11-22 02:16:42,004 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:16:42,204 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:16:42,205 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c [2022-11-22 02:16:42,213 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data/decdfffc8/7890b62d3f094f2f9175c931f2195588/FLAG19a7ba7db [2022-11-22 02:16:42,232 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/data/decdfffc8/7890b62d3f094f2f9175c931f2195588 [2022-11-22 02:16:42,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:16:42,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:16:42,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:42,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:16:42,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:16:42,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5409b4f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42, skipping insertion in model container [2022-11-22 02:16:42,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:16:42,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:16:42,549 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-11-22 02:16:42,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:42,584 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:16:42,628 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/sv-benchmarks/c/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2022-11-22 02:16:42,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:16:42,658 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:16:42,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42 WrapperNode [2022-11-22 02:16:42,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:16:42,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:42,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:16:42,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:16:42,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,727 INFO L138 Inliner]: procedures = 19, calls = 78, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 200 [2022-11-22 02:16:42,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:16:42,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:16:42,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:16:42,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:16:42,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:16:42,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:16:42,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:16:42,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:16:42,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (1/1) ... [2022-11-22 02:16:42,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:16:42,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:16:42,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:16:42,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:16:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:16:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-22 02:16:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 02:16:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:16:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-22 02:16:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:16:42,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:16:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:16:42,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:16:42,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:16:45,831 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:16:45,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:16:45,837 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:16:45,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:45 BoogieIcfgContainer [2022-11-22 02:16:45,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:16:45,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:16:45,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:16:45,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:16:45,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:16:42" (1/3) ... [2022-11-22 02:16:45,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311488c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:45, skipping insertion in model container [2022-11-22 02:16:45,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:16:42" (2/3) ... [2022-11-22 02:16:45,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311488c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:16:45, skipping insertion in model container [2022-11-22 02:16:45,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:16:45" (3/3) ... [2022-11-22 02:16:45,847 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+nlh-reducer.c [2022-11-22 02:16:45,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:16:45,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:16:45,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:16:45,917 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;@51fd9a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:16:45,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:16:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 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) [2022-11-22 02:16:45,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 02:16:45,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:16:45,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:16:45,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:16:45,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:16:45,934 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2022-11-22 02:16:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:16:45,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145982293] [2022-11-22 02:16:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:16:45,948 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 [2022-11-22 02:16:45,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:16:45,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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) [2022-11-22 02:16:45,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:16:46,112 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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)] Exception during sending of exit command (exit): Broken pipe [2022-11-22 02:16:46,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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 139 [2022-11-22 02:16:46,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:16:46,314 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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) 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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) 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 [2022-11-22 02:16:46,319 INFO L158 Benchmark]: Toolchain (without parser) took 4078.33ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 34.4MB in the end (delta: 11.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-11-22 02:16:46,320 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 31.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:16:46,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.68ms. Allocated memory is still 73.4MB. Free memory was 45.1MB in the beginning and 50.6MB in the end (delta: -5.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-22 02:16:46,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.25ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:16:46,321 INFO L158 Benchmark]: Boogie Preprocessor took 66.87ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 46.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:16:46,322 INFO L158 Benchmark]: RCFGBuilder took 3040.33ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 48.7MB in the end (delta: -2.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-22 02:16:46,323 INFO L158 Benchmark]: TraceAbstraction took 477.49ms. Allocated memory is still 73.4MB. Free memory was 48.0MB in the beginning and 34.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:16:46,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 31.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.68ms. Allocated memory is still 73.4MB. Free memory was 45.1MB in the beginning and 50.6MB in the end (delta: -5.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.25ms. Allocated memory is still 73.4MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.87ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 46.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3040.33ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 48.7MB in the end (delta: -2.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 477.49ms. Allocated memory is still 73.4MB. Free memory was 48.0MB in the beginning and 34.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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) 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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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) 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. [2022-11-22 02:16:46,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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_e0e82d07-bb49-4659-8636-83f9bb7d4dec/bin/utaipan-g80aRyZoba/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) with exit command (exit)) Received EOF on stdin. No stderr output.