./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS --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 c87390cdeb02bfcfd0888edfd053aa6fdb8101a94f62a8bab80f07fbfb57784e --- 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-8393723 [2022-11-19 08:10:20,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:10:20,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:10:20,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:10:20,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:10:20,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:10:20,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:10:20,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:10:20,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:10:20,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:10:20,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:10:20,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:10:20,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:10:20,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:10:20,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:10:20,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:10:20,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:10:20,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:10:20,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:10:20,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:10:20,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:10:20,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:10:20,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:10:20,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:10:20,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:10:20,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:10:20,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:10:20,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:10:20,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:10:20,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:10:20,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:10:20,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:10:20,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:10:20,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:10:20,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:10:20,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:10:20,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:10:20,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:10:20,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:10:20,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:10:20,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:10:20,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:10:20,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:10:20,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:10:20,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:10:20,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:10:20,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:10:20,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:10:20,327 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:10:20,327 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:10:20,327 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:10:20,327 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:10:20,327 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:10:20,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:10:20,328 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:10:20,328 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:10:20,328 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:10:20,329 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:10:20,329 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:10:20,329 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:10:20,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:10:20,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:10:20,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:10:20,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:10:20,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:10:20,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:10:20,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:10:20,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:10:20,332 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:10:20,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:10:20,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:10:20,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:10:20,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:10:20,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:10:20,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:20,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:10:20,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:10:20,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:10:20,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:10:20,334 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:10:20,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:10:20,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:10:20,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:10:20,335 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c87390cdeb02bfcfd0888edfd053aa6fdb8101a94f62a8bab80f07fbfb57784e [2022-11-19 08:10:20,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:10:20,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:10:20,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:10:20,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:10:20,622 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:10:20,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2022-11-19 08:10:20,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/b40fe0472/bf632ef2516646efa669ed375656fe59/FLAG14332019f [2022-11-19 08:10:21,117 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:10:21,118 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2022-11-19 08:10:21,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/b40fe0472/bf632ef2516646efa669ed375656fe59/FLAG14332019f [2022-11-19 08:10:21,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/b40fe0472/bf632ef2516646efa669ed375656fe59 [2022-11-19 08:10:21,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:10:21,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:10:21,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:21,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:10:21,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:10:21,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74734d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21, skipping insertion in model container [2022-11-19 08:10:21,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:10:21,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:10:21,765 WARN L234 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2022-11-19 08:10:21,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:21,779 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:10:21,815 WARN L234 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2022-11-19 08:10:21,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:21,830 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:10:21,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21 WrapperNode [2022-11-19 08:10:21,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:21,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:21,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:10:21,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:10:21,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,911 INFO L138 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 171 [2022-11-19 08:10:21,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:21,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:10:21,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:10:21,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:10:21,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,980 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:21,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:10:21,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:10:21,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:10:21,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:10:21,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (1/1) ... [2022-11-19 08:10:22,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:22,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:22,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:10:22,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:10:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:10:22,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:10:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:10:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-19 08:10:22,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:10:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-19 08:10:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:10:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:10:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:10:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:10:22,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:10:22,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:10:22,658 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:10:22,783 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:10:22,783 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 08:10:22,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:22 BoogieIcfgContainer [2022-11-19 08:10:22,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:10:22,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:10:22,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:10:22,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:10:22,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:10:21" (1/3) ... [2022-11-19 08:10:22,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d92f122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:10:22, skipping insertion in model container [2022-11-19 08:10:22,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:21" (2/3) ... [2022-11-19 08:10:22,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d92f122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:10:22, skipping insertion in model container [2022-11-19 08:10:22,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:22" (3/3) ... [2022-11-19 08:10:22,805 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2022-11-19 08:10:22,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:10:22,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:10:22,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:10:22,919 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;@124b8983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:10:22,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:10:22,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2022-11-19 08:10:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:10:22,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:22,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:22,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:22,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:22,936 INFO L85 PathProgramCache]: Analyzing trace with hash -411396303, now seen corresponding path program 1 times [2022-11-19 08:10:22,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:22,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876755586] [2022-11-19 08:10:22,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:22,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:23,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:10:23,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876755586] [2022-11-19 08:10:23,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876755586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:23,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:23,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:23,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991541025] [2022-11-19 08:10:23,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:23,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:10:23,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:10:23,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:10:23,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:10:23,257 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2022-11-19 08:10:23,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:23,319 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2022-11-19 08:10:23,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:10:23,322 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 [2022-11-19 08:10:23,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:23,337 INFO L225 Difference]: With dead ends: 43 [2022-11-19 08:10:23,337 INFO L226 Difference]: Without dead ends: 20 [2022-11-19 08:10:23,340 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 [2022-11-19 08:10:23,345 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:23,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:10:23,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-19 08:10:23,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-19 08:10:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:10:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-19 08:10:23,383 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2022-11-19 08:10:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:23,384 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-19 08:10:23,385 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) [2022-11-19 08:10:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-19 08:10:23,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:10:23,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:23,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:23,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:10:23,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:23,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:23,389 INFO L85 PathProgramCache]: Analyzing trace with hash 416467391, now seen corresponding path program 1 times [2022-11-19 08:10:23,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:23,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576288137] [2022-11-19 08:10:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:23,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:10:23,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:10:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:10:23,906 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:10:23,907 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:10:23,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:10:23,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:10:23,914 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:10:23,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:10:23,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:10:23 BoogieIcfgContainer [2022-11-19 08:10:23,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:10:23,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:10:23,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:10:23,963 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:10:23,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:22" (3/4) ... [2022-11-19 08:10:23,969 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:10:23,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:10:23,970 INFO L158 Benchmark]: Toolchain (without parser) took 2444.77ms. Allocated memory is still 113.2MB. Free memory was 73.0MB in the beginning and 78.5MB in the end (delta: -5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:10:23,970 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:10:23,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.28ms. Allocated memory is still 113.2MB. Free memory was 72.8MB in the beginning and 86.6MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:10:23,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.95ms. Allocated memory is still 113.2MB. Free memory was 86.6MB in the beginning and 84.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:10:23,977 INFO L158 Benchmark]: Boogie Preprocessor took 71.78ms. Allocated memory is still 113.2MB. Free memory was 84.0MB in the beginning and 82.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:10:23,982 INFO L158 Benchmark]: RCFGBuilder took 788.57ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 55.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-19 08:10:23,983 INFO L158 Benchmark]: TraceAbstraction took 1174.39ms. Allocated memory is still 113.2MB. Free memory was 55.2MB in the beginning and 78.5MB in the end (delta: -23.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-19 08:10:23,983 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 113.2MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:10:23,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.28ms. Allocated memory is still 113.2MB. Free memory was 72.8MB in the beginning and 86.6MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.95ms. Allocated memory is still 113.2MB. Free memory was 86.6MB in the beginning and 84.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.78ms. Allocated memory is still 113.2MB. Free memory was 84.0MB in the beginning and 82.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 788.57ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 55.8MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1174.39ms. Allocated memory is still 113.2MB. Free memory was 55.2MB in the beginning and 78.5MB in the end (delta: -23.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 113.2MB. Free memory is still 78.5MB. 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: 139]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L45] static const double zero = 0.0; [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L134] double x = 1.0 / 0.0; [L135] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=18014398509481996, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481996, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=18014398509481996, hx=-2, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481996, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481996, hx=-2, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481996, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=18014398509481996, hx=-2, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481996, zero=0] [L135] RET, EXPR __ieee754_log(x) [L135] double res = __ieee754_log(x); [L138] CALL, EXPR isinf_double(res) [L21] __int32_t hx, lx; VAL [\old(x)=18014398509481995, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481995, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L138] RET, EXPR isinf_double(res) [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481995, two54_log=18014398509481984, x=18014398509481996, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 20 mSDtfsCounter, 5 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=22occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:10:24,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS --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 c87390cdeb02bfcfd0888edfd053aa6fdb8101a94f62a8bab80f07fbfb57784e --- 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-8393723 [2022-11-19 08:10:26,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:10:26,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:10:26,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:10:26,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:10:26,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:10:26,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:10:26,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:10:26,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:10:26,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:10:26,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:10:26,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:10:26,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:10:26,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:10:26,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:10:26,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:10:26,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:10:26,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:10:26,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:10:26,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:10:26,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:10:26,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:10:26,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:10:26,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:10:26,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:10:26,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:10:26,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:10:26,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:10:26,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:10:26,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:10:26,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:10:26,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:10:26,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:10:26,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:10:26,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:10:26,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:10:26,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:10:26,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:10:26,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:10:26,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:10:26,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:10:26,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 08:10:26,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:10:26,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:10:26,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:10:26,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:10:26,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:10:26,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:10:26,507 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:10:26,507 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:10:26,507 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:10:26,507 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:10:26,508 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:10:26,509 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:10:26,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:10:26,510 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:10:26,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:10:26,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:10:26,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:10:26,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:10:26,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:10:26,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:10:26,523 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:10:26,523 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:10:26,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:10:26,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:10:26,524 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:10:26,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:10:26,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:10:26,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:10:26,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:10:26,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:26,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:10:26,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:10:26,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:10:26,526 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:10:26,526 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:10:26,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:10:26,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:10:26,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:10:26,527 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c87390cdeb02bfcfd0888edfd053aa6fdb8101a94f62a8bab80f07fbfb57784e [2022-11-19 08:10:26,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:10:26,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:10:26,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:10:26,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:10:26,898 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:10:26,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2022-11-19 08:10:26,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/1fcfa85f5/73aa37e3870d434c83e84dd4325a7072/FLAGf88ed7057 [2022-11-19 08:10:27,621 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:10:27,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2022-11-19 08:10:27,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/1fcfa85f5/73aa37e3870d434c83e84dd4325a7072/FLAGf88ed7057 [2022-11-19 08:10:27,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/data/1fcfa85f5/73aa37e3870d434c83e84dd4325a7072 [2022-11-19 08:10:27,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:10:27,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:10:27,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:27,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:10:27,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:10:27,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:27" (1/1) ... [2022-11-19 08:10:27,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ab925b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:27, skipping insertion in model container [2022-11-19 08:10:27,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:27" (1/1) ... [2022-11-19 08:10:27,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:10:28,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:10:28,257 WARN L234 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2022-11-19 08:10:28,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:28,321 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:10:28,376 WARN L234 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/sv-benchmarks/c/float-newlib/double_req_bl_0931.c[3610,3623] [2022-11-19 08:10:28,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:28,405 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:10:28,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28 WrapperNode [2022-11-19 08:10:28,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:28,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:28,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:10:28,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:10:28,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,481 INFO L138 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2022-11-19 08:10:28,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:28,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:10:28,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:10:28,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:10:28,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:10:28,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:10:28,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:10:28,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:10:28,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (1/1) ... [2022-11-19 08:10:28,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:28,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:28,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:10:28,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:10:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:10:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-19 08:10:28,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-19 08:10:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:10:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:10:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 08:10:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:10:28,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:10:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:10:28,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:10:28,782 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:10:28,784 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:10:54,400 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:10:54,407 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:10:54,407 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 08:10:54,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:54 BoogieIcfgContainer [2022-11-19 08:10:54,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:10:54,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:10:54,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:10:54,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:10:54,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:10:27" (1/3) ... [2022-11-19 08:10:54,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3991b1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:10:54, skipping insertion in model container [2022-11-19 08:10:54,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:28" (2/3) ... [2022-11-19 08:10:54,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3991b1cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:10:54, skipping insertion in model container [2022-11-19 08:10:54,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:54" (3/3) ... [2022-11-19 08:10:54,419 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2022-11-19 08:10:54,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:10:54,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:10:54,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:10:54,512 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;@6b994945, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:10:54,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:10:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 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) [2022-11-19 08:10:54,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:10:54,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:54,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:54,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2022-11-19 08:10:54,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:54,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684072129] [2022-11-19 08:10:54,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:54,547 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 [2022-11-19 08:10:54,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:54,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:10:54,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:55,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:10:55,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:55,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:55,754 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:55,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684072129] [2022-11-19 08:10:55,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684072129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:55,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:55,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:10:55,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368707912] [2022-11-19 08:10:55,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:55,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:10:55,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:55,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:10:55,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:10:55,807 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2022-11-19 08:10:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:55,840 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2022-11-19 08:10:55,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:10:55,844 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2022-11-19 08:10:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:55,865 INFO L225 Difference]: With dead ends: 62 [2022-11-19 08:10:55,869 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 08:10:55,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:10:55,885 INFO L413 NwaCegarLoop]: 42 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, 42 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 [2022-11-19 08:10:55,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:10:55,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 08:10:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-19 08:10:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 28 states have internal predecessors, (39), 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) [2022-11-19 08:10:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2022-11-19 08:10:55,942 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2022-11-19 08:10:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:55,943 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2022-11-19 08:10:55,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2022-11-19 08:10:55,944 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-11-19 08:10:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:10:55,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:55,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:55,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:56,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:56,163 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:56,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:56,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2022-11-19 08:10:56,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:56,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213075538] [2022-11-19 08:10:56,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:56,165 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 [2022-11-19 08:10:56,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:56,173 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:10:56,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:57,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:10:57,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:58,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:58,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:10:58,189 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:10:58,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213075538] [2022-11-19 08:10:58,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213075538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:58,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:58,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:10:58,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595328295] [2022-11-19 08:10:58,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:58,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:10:58,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:58,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:10:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:58,195 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-19 08:10:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:58,207 INFO L93 Difference]: Finished difference Result 48 states and 65 transitions. [2022-11-19 08:10:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:10:58,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-11-19 08:10:58,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:58,212 INFO L225 Difference]: With dead ends: 48 [2022-11-19 08:10:58,213 INFO L226 Difference]: Without dead ends: 25 [2022-11-19 08:10:58,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:10:58,221 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:58,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-11-19 08:10:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-19 08:10:58,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-19 08:10:58,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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) [2022-11-19 08:10:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2022-11-19 08:10:58,228 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 14 [2022-11-19 08:10:58,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:58,228 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2022-11-19 08:10:58,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-11-19 08:10:58,229 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-11-19 08:10:58,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:10:58,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:58,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:58,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:58,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:58,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:58,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2022-11-19 08:10:58,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:58,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336143542] [2022-11-19 08:10:58,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:58,457 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 [2022-11-19 08:10:58,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:58,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:10:58,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:58,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-19 08:10:58,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:11:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:11:00,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:11:00,997 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:11:00,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336143542] [2022-11-19 08:11:00,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336143542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:00,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:00,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:11:00,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698848072] [2022-11-19 08:11:00,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:00,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:11:00,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:11:00,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:11:00,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:11:01,000 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-19 08:11:07,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:10,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:12,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:14,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:17,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:19,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:21,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:23,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:26,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:28,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:31,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:33,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:35,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:37,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:39,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:40,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:40,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:40,878 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-11-19 08:11:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:11:40,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2022-11-19 08:11:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:40,882 INFO L225 Difference]: With dead ends: 37 [2022-11-19 08:11:40,882 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 08:11:40,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:11:40,884 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:40,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 128 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 15 Unknown, 25 Unchecked, 39.0s Time] [2022-11-19 08:11:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 08:11:40,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25. [2022-11-19 08:11:40,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 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) [2022-11-19 08:11:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-19 08:11:40,892 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 14 [2022-11-19 08:11:40,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:40,893 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-19 08:11:40,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-19 08:11:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-19 08:11:40,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:11:40,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:40,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:40,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-19 08:11:41,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:11:41,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:11:41,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:41,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1859681071, now seen corresponding path program 1 times [2022-11-19 08:11:41,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:11:41,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060781843] [2022-11-19 08:11:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:41,118 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 [2022-11-19 08:11:41,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:11:41,120 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:11:41,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:11:41,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 139 [2022-11-19 08:11:41,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:11:41,497 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java: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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-19 08:11:41,500 INFO L158 Benchmark]: Toolchain (without parser) took 73525.57ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 53.6MB in the beginning and 65.1MB in the end (delta: -11.6MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-19 08:11:41,500 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:11:41,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.09ms. Allocated memory is still 69.2MB. Free memory was 53.4MB in the beginning and 50.8MB in the end (delta: 2.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-11-19 08:11:41,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.37ms. Allocated memory is still 69.2MB. Free memory was 50.8MB in the beginning and 48.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:11:41,502 INFO L158 Benchmark]: Boogie Preprocessor took 58.78ms. Allocated memory is still 69.2MB. Free memory was 48.8MB in the beginning and 46.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:11:41,502 INFO L158 Benchmark]: RCFGBuilder took 25864.37ms. 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 70.5MB in the end (delta: -23.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-19 08:11:41,502 INFO L158 Benchmark]: TraceAbstraction took 47087.03ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 65.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-11-19 08:11:41,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 69.2MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.09ms. Allocated memory is still 69.2MB. Free memory was 53.4MB in the beginning and 50.8MB in the end (delta: 2.5MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.37ms. Allocated memory is still 69.2MB. Free memory was 50.8MB in the beginning and 48.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.78ms. Allocated memory is still 69.2MB. Free memory was 48.8MB in the beginning and 46.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 25864.37ms. 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 70.5MB in the end (delta: -23.8MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 47087.03ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 65.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 08:11:41,726 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-19 08:11:41,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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_fcce6eeb-2573-4c92-bde1-61cc65c48e3c/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.