./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 --- 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 08:31:18,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:31:18,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:31:18,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:31:18,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:31:18,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:31:18,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:31:18,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:31:18,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:31:18,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:31:18,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:31:18,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:31:18,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:31:18,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:31:18,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:31:18,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:31:18,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:31:18,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:31:18,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:31:18,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:31:18,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:31:18,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:31:18,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:31:18,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:31:18,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:31:18,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:31:18,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:31:18,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:31:18,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:31:18,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:31:18,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:31:18,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:31:18,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:31:18,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:31:18,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:31:18,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:31:18,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:31:18,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:31:18,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:31:18,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:31:18,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:31:18,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:31:18,288 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:31:18,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:31:18,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:31:18,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:31:18,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:31:18,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:31:18,293 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:31:18,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:31:18,293 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:31:18,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:31:18,295 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:31:18,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:31:18,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:31:18,296 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:31:18,296 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:31:18,297 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:31:18,297 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:31:18,297 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:31:18,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:31:18,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:31:18,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:31:18,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:31:18,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:31:18,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:31:18,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:31:18,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:31:18,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:31:18,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:31:18,302 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:31:18,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:31:18,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:31:18,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:31:18,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:18,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:31:18,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:31:18,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:31:18,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:31:18,304 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:31:18,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:31:18,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:31:18,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:31:18,305 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 [2022-11-19 08:31:18,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:31:18,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:31:18,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:31:18,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:31:18,610 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:31:18,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2022-11-19 08:31:18,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/0ecb12c3c/7abc1cbd51084ce3b8824405614e4bfb/FLAG8febf0808 [2022-11-19 08:31:19,227 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:31:19,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2022-11-19 08:31:19,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/0ecb12c3c/7abc1cbd51084ce3b8824405614e4bfb/FLAG8febf0808 [2022-11-19 08:31:19,578 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/0ecb12c3c/7abc1cbd51084ce3b8824405614e4bfb [2022-11-19 08:31:19,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:31:19,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:31:19,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:19,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:31:19,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:31:19,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:19,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681c3a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19, skipping insertion in model container [2022-11-19 08:31:19,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:19,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:31:19,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:31:19,861 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2022-11-19 08:31:19,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:19,875 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:31:19,923 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2022-11-19 08:31:19,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:19,955 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:31:19,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19 WrapperNode [2022-11-19 08:31:19,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:19,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:19,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:31:19,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:31:19,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:19,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,027 INFO L138 Inliner]: procedures = 18, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 249 [2022-11-19 08:31:20,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:20,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:31:20,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:31:20,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:31:20,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,062 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:31:20,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:31:20,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:31:20,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:31:20,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (1/1) ... [2022-11-19 08:31:20,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:20,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:31:20,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:31:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:31:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:31:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:31:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-19 08:31:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:31:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-19 08:31:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:31:20,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:31:20,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:31:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:31:20,248 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:31:20,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:31:20,792 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:21,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:21,019 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-19 08:31:21,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:21 BoogieIcfgContainer [2022-11-19 08:31:21,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:21,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:21,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:21,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:21,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:31:19" (1/3) ... [2022-11-19 08:31:21,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24430446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:21, skipping insertion in model container [2022-11-19 08:31:21,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:19" (2/3) ... [2022-11-19 08:31:21,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24430446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:21, skipping insertion in model container [2022-11-19 08:31:21,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:21" (3/3) ... [2022-11-19 08:31:21,034 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2022-11-19 08:31:21,057 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:21,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:31:21,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:21,139 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;@27f52c8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:21,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:31:21,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 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 08:31:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:31:21,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:21,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:21,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:21,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:21,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1605801549, now seen corresponding path program 1 times [2022-11-19 08:31:21,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:21,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343562877] [2022-11-19 08:31:21,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:21,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:21,433 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 08:31:21,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:21,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343562877] [2022-11-19 08:31:21,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343562877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:21,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:21,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:31:21,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545861861] [2022-11-19 08:31:21,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:21,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:31:21,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:31:21,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:31:21,485 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 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 08:31:21,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:21,545 INFO L93 Difference]: Finished difference Result 69 states and 113 transitions. [2022-11-19 08:31:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:31:21,548 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 08:31:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:21,557 INFO L225 Difference]: With dead ends: 69 [2022-11-19 08:31:21,557 INFO L226 Difference]: Without dead ends: 33 [2022-11-19 08:31:21,560 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 08:31:21,565 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:21,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:31:21,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-19 08:31:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-19 08:31:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 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 08:31:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2022-11-19 08:31:21,604 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 10 [2022-11-19 08:31:21,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:21,604 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2022-11-19 08:31:21,605 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 08:31:21,605 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-11-19 08:31:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:31:21,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:21,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:21,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:31:21,607 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:21,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1014885480, now seen corresponding path program 1 times [2022-11-19 08:31:21,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:21,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867334500] [2022-11-19 08:31:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:21,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:31:22,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:31:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:31:22,225 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:31:22,226 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:31:22,228 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:31:22,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:31:22,236 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:31:22,241 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:31:22,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:31:22 BoogieIcfgContainer [2022-11-19 08:31:22,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:31:22,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:31:22,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:31:22,297 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:31:22,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:21" (3/4) ... [2022-11-19 08:31:22,301 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:31:22,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:31:22,303 INFO L158 Benchmark]: Toolchain (without parser) took 2720.37ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 97.2MB in the beginning and 115.6MB in the end (delta: -18.4MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2022-11-19 08:31:22,303 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 30.9MB in the beginning and 30.8MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:22,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.92ms. Allocated memory is still 132.1MB. Free memory was 96.9MB in the beginning and 103.0MB in the end (delta: -6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:31:22,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.98ms. Allocated memory is still 132.1MB. Free memory was 103.0MB in the beginning and 100.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:22,312 INFO L158 Benchmark]: Boogie Preprocessor took 39.72ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:22,315 INFO L158 Benchmark]: RCFGBuilder took 954.03ms. Allocated memory is still 132.1MB. Free memory was 97.4MB in the beginning and 104.9MB in the end (delta: -7.5MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-19 08:31:22,316 INFO L158 Benchmark]: TraceAbstraction took 1272.14ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 104.7MB in the beginning and 115.6MB in the end (delta: -10.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2022-11-19 08:31:22,316 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 184.5MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:22,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 30.9MB in the beginning and 30.8MB in the end (delta: 78.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.92ms. Allocated memory is still 132.1MB. Free memory was 96.9MB in the beginning and 103.0MB in the end (delta: -6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.98ms. Allocated memory is still 132.1MB. Free memory was 103.0MB in the beginning and 100.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.72ms. Allocated memory is still 132.1MB. Free memory was 99.8MB in the beginning and 97.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 954.03ms. Allocated memory is still 132.1MB. Free memory was 97.4MB in the beginning and 104.9MB in the end (delta: -7.5MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1272.14ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 104.7MB in the beginning and 115.6MB in the end (delta: -10.9MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 184.5MB. Free memory is still 115.6MB. 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: 188]: 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 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133, overapproximation of bitwiseAnd at line 169. Possible FailurePath: [L17-L26] 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; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L17-L26] 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; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L17-L26] 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; [L28] static const double zero = 0.0; [L17-L26] 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; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L17-L26] 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; [L116] static const double zero_log10 = 0.0; [L17-L26] 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; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L183] double x = 1.0 / 0.0; [L184] CALL, EXPR __ieee754_log10(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [\old(x)=9221120239188574220, ivln10_log10=108573620475812954167/250000000000000000000, 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, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=9221120239188574220, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [\old(x)=9221120239188574220, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, 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, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=0, two54_log=18014398509481984, two54_log10=18014398509481984, x=9221120239188574220, zero=0, zero_log10=0] [L131] COND TRUE hx < 0x00100000 VAL [\old(x)=9221120239188574220, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, 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, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=0, two54_log=18014398509481984, two54_log10=18014398509481984, x=9221120239188574220, zero=0, zero_log10=0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [\old(x)=9221120239188574220, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, 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, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=0, two54_log=18014398509481984, two54_log10=18014398509481984, x=9221120239188574220, zero=0, zero_log10=0] [L184] RET, EXPR __ieee754_log10(x) [L184] double res = __ieee754_log10(x); [L187] CALL, EXPR isinf_double(res) [L162] __int32_t hx, lx; VAL [\old(x)=9221120239188574219, ivln10_log10=108573620475812954167/250000000000000000000, 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, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=9221120239188574219, zero=0, zero_log10=0] [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L187] RET, EXPR isinf_double(res) [L187] COND TRUE !isinf_double(res) [L188] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, 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, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=9221120239188574219, two54_log=18014398509481984, two54_log10=18014398509481984, x=9221120239188574220, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 36 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s 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 08:31:22,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 --- 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 08:31:24,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:31:24,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:31:24,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:31:24,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:31:24,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:31:24,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:31:24,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:31:24,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:31:24,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:31:24,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:31:24,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:31:24,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:31:24,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:31:24,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:31:24,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:31:24,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:31:24,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:31:24,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:31:24,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:31:24,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:31:24,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:31:24,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:31:24,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:31:24,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:31:24,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:31:24,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:31:24,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:31:24,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:31:24,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:31:24,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:31:24,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:31:24,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:31:24,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:31:24,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:31:24,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:31:24,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:31:24,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:31:24,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:31:24,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:31:24,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:31:24,842 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 08:31:24,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:31:24,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:31:24,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:31:24,890 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:31:24,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:31:24,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:31:24,891 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:31:24,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:31:24,891 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:31:24,892 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:31:24,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:31:24,893 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:31:24,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:31:24,895 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:31:24,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:31:24,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:31:24,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:31:24,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:31:24,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:31:24,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:31:24,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:31:24,897 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:31:24,897 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:31:24,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:31:24,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:31:24,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:31:24,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:31:24,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:31:24,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:31:24,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:24,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:31:24,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:31:24,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:31:24,900 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:31:24,900 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:31:24,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:31:24,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:31:24,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:31:24,901 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58ac0589d73c462785a1e0525d17b3b74f7db66a56b5cb7df3664daf67476919 [2022-11-19 08:31:25,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:31:25,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:31:25,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:31:25,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:31:25,301 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:31:25,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2022-11-19 08:31:25,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/cf813ce91/03f678b2a4784eb99123691799b1ae0b/FLAGe8d76b6a9 [2022-11-19 08:31:26,004 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:31:26,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2022-11-19 08:31:26,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/cf813ce91/03f678b2a4784eb99123691799b1ae0b/FLAGe8d76b6a9 [2022-11-19 08:31:26,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/data/cf813ce91/03f678b2a4784eb99123691799b1ae0b [2022-11-19 08:31:26,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:31:26,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:31:26,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:26,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:31:26,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:31:26,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e08c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26, skipping insertion in model container [2022-11-19 08:31:26,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:31:26,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:31:26,580 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2022-11-19 08:31:26,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:26,626 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:31:26,680 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2022-11-19 08:31:26,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:26,698 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:31:26,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26 WrapperNode [2022-11-19 08:31:26,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:26,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:26,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:31:26,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:31:26,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,754 INFO L138 Inliner]: procedures = 21, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 235 [2022-11-19 08:31:26,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:26,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:31:26,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:31:26,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:31:26,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:31:26,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:31:26,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:31:26,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:31:26,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (1/1) ... [2022-11-19 08:31:26,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:26,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:26,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:31:26,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:31:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:31:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-19 08:31:26,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-19 08:31:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:31:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:31:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 08:31:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:31:26,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:31:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:31:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:31:27,092 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:31:27,094 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:31:59,920 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:59,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:59,928 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-19 08:31:59,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:59 BoogieIcfgContainer [2022-11-19 08:31:59,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:59,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:59,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:59,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:59,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:31:26" (1/3) ... [2022-11-19 08:31:59,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1a0a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:59, skipping insertion in model container [2022-11-19 08:31:59,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:26" (2/3) ... [2022-11-19 08:31:59,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1a0a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:59, skipping insertion in model container [2022-11-19 08:31:59,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:59" (3/3) ... [2022-11-19 08:31:59,942 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2022-11-19 08:31:59,963 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:59,964 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:32:00,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:32:00,022 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;@261f3a1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:32:00,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:32:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 44 states have internal predecessors, (74), 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 08:32:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 08:32:00,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:00,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:00,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:00,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:00,039 INFO L85 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2022-11-19 08:32:00,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:32:00,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037928029] [2022-11-19 08:32:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:00,053 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 08:32:00,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:32:00,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:00,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:01,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 08:32:01,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:01,032 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 08:32:01,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:32:01,034 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:32:01,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037928029] [2022-11-19 08:32:01,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037928029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:01,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:01,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:32:01,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593162595] [2022-11-19 08:32:01,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:01,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:32:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:32:01,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:32:01,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:32:01,072 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 44 states have internal predecessors, (74), 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 08:32:01,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:01,092 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2022-11-19 08:32:01,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:32:01,094 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 08:32:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:01,103 INFO L225 Difference]: With dead ends: 88 [2022-11-19 08:32:01,103 INFO L226 Difference]: Without dead ends: 42 [2022-11-19 08:32:01,107 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 08:32:01,110 INFO L413 NwaCegarLoop]: 59 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, 59 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 08:32:01,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:32:01,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-19 08:32:01,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-19 08:32:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 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 08:32:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2022-11-19 08:32:01,146 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2022-11-19 08:32:01,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:01,146 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2022-11-19 08:32:01,147 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 08:32:01,147 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2022-11-19 08:32:01,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:32:01,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:01,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:01,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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)] Ended with exit code 0 [2022-11-19 08:32:01,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:01,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:01,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:01,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2022-11-19 08:32:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:32:01,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577982745] [2022-11-19 08:32:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:01,374 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 08:32:01,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:32:01,375 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:01,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:02,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:32:02,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:02,945 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 08:32:02,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:32:02,946 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:32:02,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577982745] [2022-11-19 08:32:02,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1577982745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:02,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:02,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:02,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041266224] [2022-11-19 08:32:02,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:02,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:02,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:32:02,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:02,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:02,950 INFO L87 Difference]: Start difference. First operand 42 states and 56 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 08:32:02,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:02,963 INFO L93 Difference]: Finished difference Result 74 states and 99 transitions. [2022-11-19 08:32:02,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:02,963 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 08:32:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:02,964 INFO L225 Difference]: With dead ends: 74 [2022-11-19 08:32:02,964 INFO L226 Difference]: Without dead ends: 38 [2022-11-19 08:32:02,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:02,966 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:02,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-11-19 08:32:02,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-19 08:32:02,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-19 08:32:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 37 states have internal predecessors, (49), 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 08:32:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2022-11-19 08:32:02,976 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 14 [2022-11-19 08:32:02,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:02,977 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2022-11-19 08:32:02,977 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 08:32:02,977 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2022-11-19 08:32:02,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:32:02,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:02,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:32:03,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:03,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:03,189 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:03,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2022-11-19 08:32:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:32:03,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071614398] [2022-11-19 08:32:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:03,191 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 08:32:03,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:32:03,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:03,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:03,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-19 08:32:03,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:32:05,631 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 08:32:05,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:32:05,632 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:32:05,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071614398] [2022-11-19 08:32:05,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1071614398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:05,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:05,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 08:32:05,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397638590] [2022-11-19 08:32:05,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:05,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-19 08:32:05,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:32:05,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-19 08:32:05,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:32:05,635 INFO L87 Difference]: Start difference. First operand 38 states and 49 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 08:32:10,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:12,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:15,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:17,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:22,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:25,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:27,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:29,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:32,251 WARN L539 Checker$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 08:32:34,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:36,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:38,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:40,910 WARN L539 Checker$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 08:32:43,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:45,427 WARN L539 Checker$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 08:32:47,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:49,784 WARN L539 Checker$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 08:32:52,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 08:32:54,439 WARN L539 Checker$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 08:32:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:54,714 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2022-11-19 08:32:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 08:32:54,723 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 08:32:54,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:54,723 INFO L225 Difference]: With dead ends: 54 [2022-11-19 08:32:54,724 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 08:32:54,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:32:54,727 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 32 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 48.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:54,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 222 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 19 Unknown, 32 Unchecked, 48.3s Time] [2022-11-19 08:32:54,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 08:32:54,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2022-11-19 08:32:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 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 08:32:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2022-11-19 08:32:54,733 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 14 [2022-11-19 08:32:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:54,733 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2022-11-19 08:32:54,733 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 08:32:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2022-11-19 08:32:54,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-19 08:32:54,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:54,734 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, 1, 1, 1] [2022-11-19 08:32:54,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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)] Forceful destruction successful, exit code 0 [2022-11-19 08:32:54,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:54,935 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:32:54,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1505793976, now seen corresponding path program 1 times [2022-11-19 08:32:54,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:32:54,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2077296949] [2022-11-19 08:32:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:54,937 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 08:32:54,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:32:54,938 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:54,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:55,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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)] Ended with exit code 139 [2022-11-19 08:32:55,134 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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 08:32:55,138 INFO L158 Benchmark]: Toolchain (without parser) took 88783.90ms. Allocated memory is still 71.3MB. Free memory was 54.2MB in the beginning and 45.6MB in the end (delta: 8.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-19 08:32:55,138 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:32:55,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.30ms. Allocated memory is still 71.3MB. Free memory was 53.9MB in the beginning and 51.1MB in the end (delta: 2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 08:32:55,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.36ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 48.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:32:55,139 INFO L158 Benchmark]: Boogie Preprocessor took 84.54ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 46.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:32:55,140 INFO L158 Benchmark]: RCFGBuilder took 33090.27ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 49.4MB in the end (delta: -3.3MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-11-19 08:32:55,140 INFO L158 Benchmark]: TraceAbstraction took 55203.61ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 45.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-19 08:32:55,142 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.30ms. Allocated memory is still 71.3MB. Free memory was 53.9MB in the beginning and 51.1MB in the end (delta: 2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.36ms. Allocated memory is still 71.3MB. Free memory was 51.1MB in the beginning and 48.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.54ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 46.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 33090.27ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 49.4MB in the end (delta: -3.3MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 55203.61ms. Allocated memory is still 71.3MB. Free memory was 48.6MB in the beginning and 45.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. 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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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 08:32:55,360 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-19 08:32:55,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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_0a393fb4-ec4c-4d66-9f9f-e236a33abc4f/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.