./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 --- 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-e04fb08 [2022-11-16 11:18:11,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:18:11,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:18:11,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:18:11,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:18:11,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:18:11,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:18:11,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:18:11,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:18:11,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:18:11,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:18:11,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:18:11,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:18:11,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:18:11,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:18:11,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:18:11,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:18:11,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:18:11,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:18:11,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:18:11,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:18:11,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:18:11,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:18:11,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:18:11,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:18:11,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:18:11,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:18:11,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:18:11,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:18:11,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:18:11,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:18:11,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:18:11,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:18:11,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:18:11,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:18:11,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:18:11,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:18:11,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:18:11,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:18:11,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:18:11,269 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:18:11,270 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:18:11,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:18:11,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:18:11,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:18:11,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:18:11,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:18:11,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:18:11,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:18:11,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:18:11,322 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:18:11,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:18:11,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:18:11,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:18:11,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:18:11,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:18:11,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:18:11,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:18:11,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:18:11,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:18:11,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:18:11,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:18:11,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:18:11,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:18:11,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:18:11,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:18:11,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:18:11,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:18:11,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:18:11,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:18:11,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:18:11,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:18:11,328 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:18:11,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:18:11,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:18:11,329 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 [2022-11-16 11:18:11,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:18:11,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:18:11,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:18:11,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:18:11,639 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:18:11,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2022-11-16 11:18:11,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/5c71c8f99/71dcf06552bf42b59bc968d2fef80986/FLAG2cffa6fe0 [2022-11-16 11:18:12,319 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:18:12,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2022-11-16 11:18:12,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/5c71c8f99/71dcf06552bf42b59bc968d2fef80986/FLAG2cffa6fe0 [2022-11-16 11:18:12,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/5c71c8f99/71dcf06552bf42b59bc968d2fef80986 [2022-11-16 11:18:12,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:18:12,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:18:12,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:12,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:18:12,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:18:12,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:12,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4ace43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12, skipping insertion in model container [2022-11-16 11:18:12,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:12,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:18:12,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:18:12,888 WARN L229 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2022-11-16 11:18:12,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:12,923 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:18:12,945 WARN L229 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2022-11-16 11:18:12,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:12,969 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:18:12,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12 WrapperNode [2022-11-16 11:18:12,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:12,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:12,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:18:12,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:18:12,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,036 INFO L138 Inliner]: procedures = 18, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 147 [2022-11-16 11:18:13,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:13,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:18:13,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:18:13,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:18:13,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:18:13,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:18:13,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:18:13,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:18:13,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (1/1) ... [2022-11-16 11:18:13,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:18:13,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:18:13,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:18:13,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:18:13,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:18:13,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:18:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:18:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 11:18:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:18:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:18:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-16 11:18:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:18:13,228 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:18:13,230 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:18:13,419 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:18:13,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:18:13,426 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:18:13,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:13 BoogieIcfgContainer [2022-11-16 11:18:13,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:18:13,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:18:13,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:18:13,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:18:13,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:18:12" (1/3) ... [2022-11-16 11:18:13,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20604e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:18:13, skipping insertion in model container [2022-11-16 11:18:13,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:12" (2/3) ... [2022-11-16 11:18:13,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20604e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:18:13, skipping insertion in model container [2022-11-16 11:18:13,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:13" (3/3) ... [2022-11-16 11:18:13,438 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+nlh-reducer.c [2022-11-16 11:18:13,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:18:13,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:18:13,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:18:13,590 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36524d36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:18:13,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:18:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:18:13,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:13,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:13,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:13,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:13,627 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2022-11-16 11:18:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:13,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306869401] [2022-11-16 11:18:13,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:13,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:18:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:18:13,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:18:13,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306869401] [2022-11-16 11:18:13,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306869401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:18:13,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:18:13,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:18:13,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705881507] [2022-11-16 11:18:13,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:18:14,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:18:14,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:18:14,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:18:14,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:18:14,047 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:14,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:18:14,204 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2022-11-16 11:18:14,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:18:14,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-16 11:18:14,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:18:14,220 INFO L225 Difference]: With dead ends: 41 [2022-11-16 11:18:14,220 INFO L226 Difference]: Without dead ends: 22 [2022-11-16 11:18:14,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:18:14,240 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:18:14,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:18:14,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-16 11:18:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-16 11:18:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:14,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-16 11:18:14,292 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2022-11-16 11:18:14,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:18:14,293 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-16 11:18:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:14,294 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-16 11:18:14,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:18:14,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:14,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:14,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:18:14,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:14,299 INFO L85 PathProgramCache]: Analyzing trace with hash 792769235, now seen corresponding path program 1 times [2022-11-16 11:18:14,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:18:14,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531452825] [2022-11-16 11:18:14,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:14,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:18:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:14,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:18:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:18:14,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:18:14,365 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:18:14,366 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:18:14,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:18:14,372 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:18:14,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:18:14,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:18:14 BoogieIcfgContainer [2022-11-16 11:18:14,403 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:18:14,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:18:14,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:18:14,404 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:18:14,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:13" (3/4) ... [2022-11-16 11:18:14,408 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:18:14,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:18:14,409 INFO L158 Benchmark]: Toolchain (without parser) took 1750.82ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 89.7MB in the end (delta: -1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:18:14,410 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory was 96.5MB in the beginning and 96.5MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:18:14,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.51ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 97.7MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:18:14,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.41ms. Allocated memory is still 123.7MB. Free memory was 97.7MB in the beginning and 96.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:14,411 INFO L158 Benchmark]: Boogie Preprocessor took 25.37ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 94.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:14,412 INFO L158 Benchmark]: RCFGBuilder took 364.89ms. Allocated memory is still 123.7MB. Free memory was 94.6MB in the beginning and 80.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:18:14,413 INFO L158 Benchmark]: TraceAbstraction took 972.77ms. Allocated memory is still 123.7MB. Free memory was 80.5MB in the beginning and 90.4MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:18:14,413 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 123.7MB. Free memory was 90.4MB in the beginning and 89.7MB in the end (delta: 707.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:14,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory was 96.5MB in the beginning and 96.5MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.51ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 97.7MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.41ms. Allocated memory is still 123.7MB. Free memory was 97.7MB in the beginning and 96.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.37ms. Allocated memory is still 123.7MB. Free memory was 96.1MB in the beginning and 94.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.89ms. Allocated memory is still 123.7MB. Free memory was 94.6MB in the beginning and 80.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 972.77ms. Allocated memory is still 123.7MB. Free memory was 80.5MB in the beginning and 90.4MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 123.7MB. Free memory was 90.4MB in the beginning and 89.7MB in the end (delta: 707.4kB). Peak memory consumption was 2.1MB. 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: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L12] int __return_132; [L1] int __return_main; VAL [__return_132=0, __return_main=0] [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] main__t = __VERIFIER_nondet_float() [L21] int main____CPAchecker_TMP_0; [L22] EXPR main__min[0] VAL [__return_132=0, __return_main=0, main__max={5:0}, main__min={4:0}, main__min[0]=55] [L22] COND TRUE main__t >= (main__min[0]) [L24] EXPR main__max[4UL] VAL [__return_132=0, __return_main=0, main__max={5:0}, main__max[4UL]=57, main__min={4:0}] [L24] COND TRUE main__t <= (main__max[4UL]) [L26] main____CPAchecker_TMP_0 = 1 VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={5:0}, main__min={4:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L30] COND TRUE main__i < 5UL [L32] EXPR main__max[main__i] VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__max[main__i]=56, main__min={4:0}] [L32] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L64] main____CPAchecker_TMP_1 = 0 VAL [__return_132=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [__return_132=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_132=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L51] reach_error() VAL [__return_132=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 37 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 [2022-11-16 11:18:14,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 --- 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-e04fb08 [2022-11-16 11:18:16,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:18:16,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:18:16,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:18:16,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:18:16,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:18:16,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:18:16,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:18:16,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:18:16,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:18:16,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:18:16,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:18:16,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:18:16,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:18:16,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:18:16,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:18:16,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:18:16,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:18:16,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:18:16,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:18:16,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:18:16,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:18:16,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:18:16,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:18:16,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:18:16,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:18:16,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:18:16,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:18:16,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:18:16,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:18:16,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:18:16,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:18:16,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:18:16,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:18:16,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:18:16,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:18:16,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:18:16,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:18:16,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:18:16,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:18:16,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:18:16,977 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-16 11:18:17,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:18:17,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:18:17,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:18:17,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:18:17,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:18:17,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:18:17,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:18:17,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:18:17,007 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:18:17,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:18:17,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:18:17,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:18:17,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:18:17,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:18:17,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:18:17,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:18:17,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:18:17,008 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:18:17,009 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:18:17,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:18:17,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:18:17,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:18:17,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:18:17,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:18:17,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:18:17,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:18:17,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:18:17,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:18:17,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:18:17,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:18:17,011 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:18:17,011 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:18:17,011 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:18:17,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:18:17,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:18:17,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:18:17,012 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3507c00d68b8e41390815967879286d70904cb2355267878593fbddaafb4b556 [2022-11-16 11:18:17,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:18:17,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:18:17,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:18:17,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:18:17,403 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:18:17,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2022-11-16 11:18:17,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/cc704b326/773883ad71fe45a9adbbbc5c79d15221/FLAG21f2aadf8 [2022-11-16 11:18:18,065 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:18:18,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c [2022-11-16 11:18:18,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/cc704b326/773883ad71fe45a9adbbbc5c79d15221/FLAG21f2aadf8 [2022-11-16 11:18:18,435 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/data/cc704b326/773883ad71fe45a9adbbbc5c79d15221 [2022-11-16 11:18:18,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:18:18,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:18:18,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:18,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:18:18,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:18:18,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af6e0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18, skipping insertion in model container [2022-11-16 11:18:18,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:18:18,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:18:18,637 WARN L229 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2022-11-16 11:18:18,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:18,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:18:18,718 WARN L229 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/sv-benchmarks/c/float-benchs/interpolation.c.v+nlh-reducer.c[1314,1327] [2022-11-16 11:18:18,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:18:18,739 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:18:18,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18 WrapperNode [2022-11-16 11:18:18,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:18:18,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:18,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:18:18,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:18:18,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,782 INFO L138 Inliner]: procedures = 19, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 148 [2022-11-16 11:18:18,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:18:18,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:18:18,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:18:18,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:18:18,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,817 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:18:18,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:18:18,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:18:18,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:18:18,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (1/1) ... [2022-11-16 11:18:18,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:18:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:18:18,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:18:18,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:18:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:18:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-16 11:18:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:18:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:18:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-16 11:18:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:18:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:18:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:18:19,029 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:18:19,032 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:18:21,652 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:18:21,659 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:18:21,659 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:18:21,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:21 BoogieIcfgContainer [2022-11-16 11:18:21,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:18:21,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:18:21,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:18:21,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:18:21,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:18:18" (1/3) ... [2022-11-16 11:18:21,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b9d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:18:21, skipping insertion in model container [2022-11-16 11:18:21,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:18:18" (2/3) ... [2022-11-16 11:18:21,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b9d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:18:21, skipping insertion in model container [2022-11-16 11:18:21,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:18:21" (3/3) ... [2022-11-16 11:18:21,670 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+nlh-reducer.c [2022-11-16 11:18:21,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:18:21,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:18:21,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:18:21,746 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ff467b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:18:21,747 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:18:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:18:21,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 11:18:21,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:18:21,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:18:21,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:18:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:18:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2022-11-16 11:18:21,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:18:21,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818600980] [2022-11-16 11:18:21,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:18:21,777 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 [2022-11-16 11:18:21,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:18:21,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:18:21,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:18:21,861 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Exception during sending of exit command (exit): Broken pipe [2022-11-16 11:18:21,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-16 11:18:22,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:18:22,062 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_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-16 11:18:22,067 INFO L158 Benchmark]: Toolchain (without parser) took 3626.57ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: -45.6kB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-16 11:18:22,068 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:18:22,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.58ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 41.2MB in the end (delta: -4.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:18:22,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.24ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 39.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:18:22,070 INFO L158 Benchmark]: Boogie Preprocessor took 37.50ms. Allocated memory is still 58.7MB. Free memory was 39.4MB in the beginning and 37.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:18:22,071 INFO L158 Benchmark]: RCFGBuilder took 2839.39ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.6MB in the beginning and 49.8MB in the end (delta: -12.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-11-16 11:18:22,075 INFO L158 Benchmark]: TraceAbstraction took 401.31ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 37.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:18:22,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.58ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 41.2MB in the end (delta: -4.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.24ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 39.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.50ms. Allocated memory is still 58.7MB. Free memory was 39.4MB in the beginning and 37.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2839.39ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 37.6MB in the beginning and 49.8MB in the end (delta: -12.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 401.31ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 37.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 11:18:22,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80dab32f-2c23-4905-9c21-f1db84faa3f7/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.