./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_set.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_set.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur --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 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- 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-38b53e6 [2022-11-25 22:15:31,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:15:31,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:15:31,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:15:31,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:15:31,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:15:31,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:15:31,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:15:31,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:15:31,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:15:31,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:15:31,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:15:31,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:15:31,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:15:31,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:15:31,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:15:31,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:15:31,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:15:31,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:15:31,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:15:31,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:15:31,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:15:31,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:15:31,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:15:31,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:15:31,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:15:31,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:15:31,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:15:31,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:15:31,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:15:31,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:15:31,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:15:31,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:15:31,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:15:31,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:15:31,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:15:31,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:15:31,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:15:31,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:15:31,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:15:31,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:15:31,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:15:31,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:15:31,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:15:31,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:15:31,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:15:31,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:15:31,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:15:31,346 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:15:31,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:15:31,347 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:15:31,347 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:15:31,348 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:15:31,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:15:31,349 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:15:31,349 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:15:31,349 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:15:31,350 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:15:31,350 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:15:31,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:15:31,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:15:31,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:15:31,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:15:31,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:15:31,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:15:31,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:15:31,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:15:31,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:15:31,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:15:31,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:15:31,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:15:31,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:15:31,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:15:31,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:15:31,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:15:31,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:15:31,357 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:15:31,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:15:31,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:15:31,358 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:15:31,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:15:31,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:15:31,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:15:31,360 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_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2022-11-25 22:15:31,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:15:31,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:15:31,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:15:31,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:15:31,711 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:15:31,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-25 22:15:34,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:15:35,234 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:15:35,235 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-25 22:15:35,245 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data/c7336e060/93c31dd84087465ca3f76ef3c36f7380/FLAG29101c03a [2022-11-25 22:15:35,268 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data/c7336e060/93c31dd84087465ca3f76ef3c36f7380 [2022-11-25 22:15:35,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:15:35,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:15:35,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:15:35,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:15:35,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:15:35,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c433fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35, skipping insertion in model container [2022-11-25 22:15:35,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:15:35,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:15:35,506 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-25 22:15:35,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:15:35,540 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:15:35,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-25 22:15:35,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:15:35,579 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:15:35,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35 WrapperNode [2022-11-25 22:15:35,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:15:35,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:15:35,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:15:35,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:15:35,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,622 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-25 22:15:35,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:15:35,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:15:35,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:15:35,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:15:35,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,647 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:15:35,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:15:35,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:15:35,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:15:35,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (1/1) ... [2022-11-25 22:15:35,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:15:35,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:35,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:15:35,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:15:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:15:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:15:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:15:35,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:15:35,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:15:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:15:35,856 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:15:35,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:15:36,056 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:15:36,085 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:15:36,086 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:15:36,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:36 BoogieIcfgContainer [2022-11-25 22:15:36,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:15:36,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:15:36,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:15:36,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:15:36,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:15:35" (1/3) ... [2022-11-25 22:15:36,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f054312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:15:36, skipping insertion in model container [2022-11-25 22:15:36,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:35" (2/3) ... [2022-11-25 22:15:36,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f054312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:15:36, skipping insertion in model container [2022-11-25 22:15:36,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:36" (3/3) ... [2022-11-25 22:15:36,099 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_set.c [2022-11-25 22:15:36,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:15:36,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:15:36,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:15:36,184 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;@465f326f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:15:36,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:15:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:15:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 22:15:36,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:36,198 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:36,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:15:36,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:36,204 INFO L85 PathProgramCache]: Analyzing trace with hash -356154640, now seen corresponding path program 1 times [2022-11-25 22:15:36,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:36,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857759339] [2022-11-25 22:15:36,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:36,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:15:36,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:15:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:15:36,487 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:15:36,490 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:15:36,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:15:36,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:15:36,499 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:15:36,503 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:15:36,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:15:36 BoogieIcfgContainer [2022-11-25 22:15:36,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:15:36,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:15:36,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:15:36,533 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:15:36,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:36" (3/4) ... [2022-11-25 22:15:36,537 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:15:36,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:15:36,538 INFO L158 Benchmark]: Toolchain (without parser) took 1260.04ms. Allocated memory is still 172.0MB. Free memory was 138.9MB in the beginning and 95.3MB in the end (delta: 43.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 22:15:36,539 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 172.0MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:15:36,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.15ms. Allocated memory is still 172.0MB. Free memory was 138.4MB in the beginning and 127.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:15:36,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.74ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 126.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:15:36,541 INFO L158 Benchmark]: Boogie Preprocessor took 27.47ms. Allocated memory is still 172.0MB. Free memory was 126.2MB in the beginning and 125.2MB in the end (delta: 978.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:15:36,542 INFO L158 Benchmark]: RCFGBuilder took 437.46ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 113.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:15:36,543 INFO L158 Benchmark]: TraceAbstraction took 440.22ms. Allocated memory is still 172.0MB. Free memory was 112.6MB in the beginning and 95.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:15:36,543 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 172.0MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:15:36,547 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 172.0MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.15ms. Allocated memory is still 172.0MB. Free memory was 138.4MB in the beginning and 127.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.74ms. Allocated memory is still 172.0MB. Free memory was 127.9MB in the beginning and 126.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.47ms. Allocated memory is still 172.0MB. Free memory was 126.2MB in the beginning and 125.2MB in the end (delta: 978.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.46ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 113.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 440.22ms. Allocated memory is still 172.0MB. Free memory was 112.6MB in the beginning and 95.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 172.0MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of to_real at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L22] double E, E0, E1, S0, S1, S; [L23] double A1, A2, A3, B1, B2; [L24] int i; [L26] A1 = __VERIFIER_nondet_double() [L27] A2 = __VERIFIER_nondet_double() [L28] A3 = __VERIFIER_nondet_double() [L29] B1 = __VERIFIER_nondet_double() [L30] B2 = __VERIFIER_nondet_double() [L31] CALL assume_abort_if_not(A1 >= 0.69 && A1 <= 0.71) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L31] RET assume_abort_if_not(A1 >= 0.69 && A1 <= 0.71) [L32] CALL assume_abort_if_not(A2 >= -1.31 && A2 <= -1.29) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L32] RET assume_abort_if_not(A2 >= -1.31 && A2 <= -1.29) [L33] CALL assume_abort_if_not(A3 >= 1.09 && A3 <= 1.11) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L33] RET assume_abort_if_not(A3 >= 1.09 && A3 <= 1.11) [L34] CALL assume_abort_if_not(B1 >= 1.39 && B1 <= 1.41) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L34] RET assume_abort_if_not(B1 >= 1.39 && B1 <= 1.41) [L35] CALL assume_abort_if_not(B2 >= -0.71 && B2 <= -0.69) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L35] RET assume_abort_if_not(B2 >= -0.71 && B2 <= -0.69) [L38] E = __VERIFIER_nondet_double() [L39] E0 = __VERIFIER_nondet_double() [L40] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L40] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=57, E=56] [L41] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L41] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [E=56, E=57] [L43] S0 = 0 [L44] S = 0 [L46] i = 0 VAL [E=57, E=56, i=0] [L46] COND TRUE i <= 1000000 [L47] E1 = E0 [L48] E0 = E [L50] E = __VERIFIER_nondet_double() [L51] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L51] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=57, E=56, E=55, i=0] [L53] S1 = S0 [L54] S0 = S [L55] S = A1*E - E0*A2 + E1*A3 + S0*B1 + S1*B2 [L57] CALL __VERIFIER_assert(S >= -100. && S <= 100.) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L17] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-25 22:15:36,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_set.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur --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 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- 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-38b53e6 [2022-11-25 22:15:39,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:15:39,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:15:39,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:15:39,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:15:39,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:15:39,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:15:39,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:15:39,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:15:39,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:15:39,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:15:39,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:15:39,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:15:39,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:15:39,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:15:39,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:15:39,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:15:39,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:15:39,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:15:39,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:15:39,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:15:39,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:15:39,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:15:39,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:15:39,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:15:39,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:15:39,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:15:39,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:15:39,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:15:39,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:15:39,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:15:39,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:15:39,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:15:39,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:15:39,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:15:39,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:15:39,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:15:39,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:15:39,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:15:39,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:15:39,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:15:39,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 22:15:39,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:15:39,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:15:39,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:15:39,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:15:39,501 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:15:39,501 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:15:39,502 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:15:39,502 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:15:39,502 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:15:39,502 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:15:39,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:15:39,503 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:15:39,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:15:39,504 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:15:39,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:15:39,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:15:39,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:15:39,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:15:39,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:15:39,505 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:15:39,506 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:15:39,506 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:15:39,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:15:39,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:15:39,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:15:39,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:15:39,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:15:39,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:15:39,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:15:39,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:15:39,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:15:39,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:15:39,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:15:39,525 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:15:39,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:15:39,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:15:39,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:15:39,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:15:39,527 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2022-11-25 22:15:39,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:15:39,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:15:40,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:15:40,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:15:40,002 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:15:40,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-25 22:15:43,186 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:15:43,445 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:15:43,446 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-25 22:15:43,453 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data/2d89218bf/58d4808e3ea84694aa5b81b9ec7a8df7/FLAGfaaa788cf [2022-11-25 22:15:43,468 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/data/2d89218bf/58d4808e3ea84694aa5b81b9ec7a8df7 [2022-11-25 22:15:43,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:15:43,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:15:43,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:15:43,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:15:43,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:15:43,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a95b30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43, skipping insertion in model container [2022-11-25 22:15:43,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:15:43,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:15:43,669 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-25 22:15:43,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:15:43,712 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:15:43,728 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-25 22:15:43,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:15:43,755 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:15:43,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43 WrapperNode [2022-11-25 22:15:43,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:15:43,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:15:43,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:15:43,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:15:43,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,831 INFO L138 Inliner]: procedures = 15, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-11-25 22:15:43,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:15:43,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:15:43,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:15:43,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:15:43,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:15:43,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:15:43,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:15:43,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:15:43,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (1/1) ... [2022-11-25 22:15:43,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:15:43,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:43,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:15:44,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:15:44,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:15:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:15:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 22:15:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 22:15:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:15:44,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:15:44,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:15:44,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:15:46,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:15:46,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:15:46,733 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:15:46,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:46 BoogieIcfgContainer [2022-11-25 22:15:46,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:15:46,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:15:46,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:15:46,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:15:46,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:15:43" (1/3) ... [2022-11-25 22:15:46,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73707ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:15:46, skipping insertion in model container [2022-11-25 22:15:46,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:43" (2/3) ... [2022-11-25 22:15:46,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73707ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:15:46, skipping insertion in model container [2022-11-25 22:15:46,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:46" (3/3) ... [2022-11-25 22:15:46,746 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_set.c [2022-11-25 22:15:46,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:15:46,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:15:46,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:15:46,880 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;@5664ecd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:15:46,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:15:46,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:15:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 22:15:46,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:46,910 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:46,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:15:46,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:46,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1697849372, now seen corresponding path program 1 times [2022-11-25 22:15:46,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:15:46,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624004055] [2022-11-25 22:15:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:46,930 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 [2022-11-25 22:15:46,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:15:46,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:15:46,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:15:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:48,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:15:48,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:15:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-25 22:15:48,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:15:48,592 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:15:48,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624004055] [2022-11-25 22:15:48,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624004055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:48,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:48,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:15:48,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122518523] [2022-11-25 22:15:48,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:48,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:15:48,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:15:48,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:15:48,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:15:48,643 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 22:15:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:48,668 INFO L93 Difference]: Finished difference Result 51 states and 78 transitions. [2022-11-25 22:15:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:15:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-25 22:15:48,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:48,683 INFO L225 Difference]: With dead ends: 51 [2022-11-25 22:15:48,683 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 22:15:48,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:15:48,689 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2022-11-25 22:15:48,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:15:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 22:15:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-25 22:15:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:15:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-25 22:15:48,734 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 48 [2022-11-25 22:15:48,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:48,735 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-25 22:15:48,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 22:15:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-25 22:15:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 22:15:48,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:48,742 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:48,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:15:48,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:15:48,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:15:48,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1417424168, now seen corresponding path program 1 times [2022-11-25 22:15:48,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:15:48,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760894477] [2022-11-25 22:15:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:48,966 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 [2022-11-25 22:15:48,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:15:48,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:15:48,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:15:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:57,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-25 22:15:57,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:13,323 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 69.0 100.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 71.0 100.0)))) (let ((.cse1 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 129.0 100.0)))) (.cse5 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 131.0 100.0)))) (.cse3 (fp.neg .cse0)) (.cse6 (fp.neg .cse7)) (.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse11 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 139.0 100.0))) (.cse8 ((_ to_fp 11 53) roundNearestTiesToEven (/ 141.0 100.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse9 ((_ to_fp 11 53) roundNearestTiesToEven (/ 109.0 100.0))) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 111.0 100.0)))) (or (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse2) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse4) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse5) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse6) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse7) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse8) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse9) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse2) (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse10 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse10 |ULTIMATE.start_main_~B2~0#1|)) .cse11) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse9) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse2) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse5) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse0) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse10 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse10 |ULTIMATE.start_main_~B2~0#1|)) (fp.neg .cse11))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse2))) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse3) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse6))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse2))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse7))))) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse8))))) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse5) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse0) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse3) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse6) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse2) (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse10 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse10 |ULTIMATE.start_main_~B2~0#1|)) .cse11)))))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse2))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse7))))) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse4) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse8))) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse2))) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse9) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) is different from false [2022-11-25 22:26:48,757 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 69.0 100.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 71.0 100.0)))) (let ((.cse3 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 129.0 100.0)))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 131.0 100.0)))) (.cse8 (fp.neg .cse5)) (.cse9 (fp.neg .cse10)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 139.0 100.0))) (.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 141.0 100.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 109.0 100.0))) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 111.0 100.0)))) (or (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) (fp.neg .cse7))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))))) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) .cse7)))))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))))) is different from false [2022-11-25 22:26:50,864 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 69.0 100.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 71.0 100.0)))) (let ((.cse3 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 129.0 100.0)))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 131.0 100.0)))) (.cse8 (fp.neg .cse5)) (.cse9 (fp.neg .cse10)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 139.0 100.0))) (.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 141.0 100.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 109.0 100.0))) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 111.0 100.0)))) (or (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) (fp.neg .cse7))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))))) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) .cse7)))))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))))) is different from true [2022-11-25 22:26:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 22:26:50,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:26:50,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:26:50,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760894477] [2022-11-25 22:26:50,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760894477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:50,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:50,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 22:26:50,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416527697] [2022-11-25 22:26:50,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:50,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 22:26:50,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:26:50,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 22:26:50,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=130, Unknown=3, NotChecked=54, Total=272 [2022-11-25 22:26:50,872 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:26:56,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:56,365 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-11-25 22:26:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 22:26:56,604 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 48 [2022-11-25 22:26:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:56,606 INFO L225 Difference]: With dead ends: 33 [2022-11-25 22:26:56,606 INFO L226 Difference]: Without dead ends: 31 [2022-11-25 22:26:56,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=90, Invalid=155, Unknown=3, NotChecked=58, Total=306 [2022-11-25 22:26:56,608 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:56,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 1 Unknown, 46 Unchecked, 5.3s Time] [2022-11-25 22:26:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-25 22:26:56,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-25 22:26:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 22:26:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-25 22:26:56,625 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 48 [2022-11-25 22:26:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:56,626 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-25 22:26:56,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 22:26:56,627 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-25 22:26:56,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 22:26:56,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:56,629 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:56,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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)] Ended with exit code 0 [2022-11-25 22:26:56,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:26:56,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1357191508, now seen corresponding path program 1 times [2022-11-25 22:26:56,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:26:56,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784783941] [2022-11-25 22:26:56,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:56,841 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 [2022-11-25 22:26:56,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:26:56,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:26:56,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e04d414d-a2b0-40bf-934a-8e9d11874bfb/bin/utaipan-ByfvJB40ur/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