./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF --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 d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:40:17,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:40:17,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:40:17,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:40:17,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:40:17,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:40:17,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:40:17,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:40:17,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:40:17,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:40:17,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:40:17,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:40:17,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:40:18,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:40:18,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:40:18,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:40:18,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:40:18,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:40:18,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:40:18,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:40:18,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:40:18,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:40:18,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:40:18,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:40:18,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:40:18,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:40:18,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:40:18,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:40:18,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:40:18,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:40:18,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:40:18,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:40:18,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:40:18,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:40:18,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:40:18,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:40:18,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:40:18,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:40:18,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:40:18,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:40:18,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:40:18,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:40:18,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:40:18,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:40:18,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:40:18,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:40:18,128 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:40:18,129 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:40:18,129 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:40:18,129 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:40:18,136 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:40:18,137 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:40:18,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:40:18,138 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:40:18,138 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:40:18,139 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:40:18,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:40:18,139 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:40:18,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:40:18,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:40:18,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:40:18,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:40:18,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:40:18,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:40:18,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:40:18,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:40:18,142 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:40:18,142 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:40:18,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:40:18,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:40:18,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:40:18,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:40:18,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:40:18,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:18,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:40:18,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:40:18,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:40:18,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:40:18,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:40:18,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:40:18,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:40:18,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:40:18,147 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e [2021-11-13 01:40:18,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:40:18,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:40:18,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:40:18,437 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:40:18,438 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:40:18,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-11-13 01:40:18,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/b118f953f/01bbd685829745868f466340594cb8e0/FLAGf884ade9b [2021-11-13 01:40:19,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:40:19,058 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-11-13 01:40:19,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/b118f953f/01bbd685829745868f466340594cb8e0/FLAGf884ade9b [2021-11-13 01:40:19,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/b118f953f/01bbd685829745868f466340594cb8e0 [2021-11-13 01:40:19,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:40:19,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:40:19,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:19,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:40:19,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:40:19,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8ede64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19, skipping insertion in model container [2021-11-13 01:40:19,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:40:19,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:19,668 WARN L228 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_5d11724a-8fab-46bb-9e79-dd58e8782663/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c[1751,1764] [2021-11-13 01:40:19,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:19,682 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:40:19,710 WARN L228 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_5d11724a-8fab-46bb-9e79-dd58e8782663/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c[1751,1764] [2021-11-13 01:40:19,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:19,728 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:40:19,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19 WrapperNode [2021-11-13 01:40:19,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:19,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:19,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:40:19,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:40:19,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:19,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:40:19,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:40:19,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:40:19,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:40:19,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:40:19,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:40:19,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:40:19,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (1/1) ... [2021-11-13 01:40:19,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:19,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:40:19,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:40:19,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:40:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:40:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:40:19,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 01:40:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:40:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 01:40:19,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:40:19,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:40:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:40:19,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:40:20,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:40:20,393 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-13 01:40:20,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:20 BoogieIcfgContainer [2021-11-13 01:40:20,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:40:20,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:40:20,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:40:20,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:40:20,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:19" (1/3) ... [2021-11-13 01:40:20,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51191101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:20, skipping insertion in model container [2021-11-13 01:40:20,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:19" (2/3) ... [2021-11-13 01:40:20,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51191101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:20, skipping insertion in model container [2021-11-13 01:40:20,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:20" (3/3) ... [2021-11-13 01:40:20,408 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2021-11-13 01:40:20,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:40:20,415 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:40:20,477 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:40:20,484 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:40:20,485 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:40:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:20,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 01:40:20,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:20,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:20,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:20,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:20,541 INFO L85 PathProgramCache]: Analyzing trace with hash -401754567, now seen corresponding path program 1 times [2021-11-13 01:40:20,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:20,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132426796] [2021-11-13 01:40:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:20,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:20,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:20,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132426796] [2021-11-13 01:40:20,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132426796] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:20,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:20,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:40:20,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205782227] [2021-11-13 01:40:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:20,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:40:20,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:20,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:40:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:20,817 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:20,870 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2021-11-13 01:40:20,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:40:20,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-13 01:40:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:20,885 INFO L225 Difference]: With dead ends: 39 [2021-11-13 01:40:20,885 INFO L226 Difference]: Without dead ends: 18 [2021-11-13 01:40:20,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:20,897 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.02ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:20,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 26.02ms Time] [2021-11-13 01:40:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-13 01:40:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-13 01:40:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-13 01:40:20,937 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2021-11-13 01:40:20,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:20,938 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-13 01:40:20,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-13 01:40:20,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:40:20,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:20,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:20,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:40:20,941 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1282649150, now seen corresponding path program 1 times [2021-11-13 01:40:20,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:20,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830377988] [2021-11-13 01:40:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:20,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:40:21,037 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:40:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:40:21,148 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:40:21,148 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:40:21,150 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:40:21,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:40:21,157 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:40:21,160 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:40:21,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:40:21 BoogieIcfgContainer [2021-11-13 01:40:21,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:40:21,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:40:21,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:40:21,192 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:40:21,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:20" (3/4) ... [2021-11-13 01:40:21,196 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:40:21,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:40:21,197 INFO L158 Benchmark]: Toolchain (without parser) took 1769.32ms. Allocated memory was 88.1MB in the beginning and 125.8MB in the end (delta: 37.7MB). Free memory was 53.6MB in the beginning and 97.9MB in the end (delta: -44.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:21,198 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 54.5MB in the beginning and 54.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:21,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.43ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 43.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:40:21,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.10ms. Allocated memory is still 88.1MB. Free memory was 42.9MB in the beginning and 41.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:21,200 INFO L158 Benchmark]: Boogie Preprocessor took 36.49ms. Allocated memory is still 88.1MB. Free memory was 41.3MB in the beginning and 39.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:21,201 INFO L158 Benchmark]: RCFGBuilder took 577.12ms. Allocated memory was 88.1MB in the beginning and 125.8MB in the end (delta: 37.7MB). Free memory was 39.9MB in the beginning and 93.0MB in the end (delta: -53.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2021-11-13 01:40:21,202 INFO L158 Benchmark]: TraceAbstraction took 792.19ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 98.3MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:21,202 INFO L158 Benchmark]: Witness Printer took 5.02ms. Allocated memory is still 125.8MB. Free memory was 98.3MB in the beginning and 97.9MB in the end (delta: 380.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:21,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 54.5MB in the beginning and 54.5MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.43ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 43.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.10ms. Allocated memory is still 88.1MB. Free memory was 42.9MB in the beginning and 41.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.49ms. Allocated memory is still 88.1MB. Free memory was 41.3MB in the beginning and 39.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 577.12ms. Allocated memory was 88.1MB in the beginning and 125.8MB in the end (delta: 37.7MB). Free memory was 39.9MB in the beginning and 93.0MB in the end (delta: -53.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 792.19ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 98.3MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.02ms. Allocated memory is still 125.8MB. Free memory was 98.3MB in the beginning and 97.9MB in the end (delta: 380.4kB). 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: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = 0.0f; [L78] CALL, EXPR round_float(x) [L15] __uint32_t w; [L17] int exponent_less_127; VAL [\old(x)=0, x=0] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=23, w=1258291201, x=0] [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND FALSE !(exponent_less_127 == 128) [L47] return x; VAL [\old(x)=0, \result=0, exponent_less_127=23, w=1258291201, x=0] [L78] RET, EXPR round_float(x) [L78] float res = round_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L82] reach_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 26.02ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 22.68ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 5 mSolverCounterSat, 0.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 01:40:21,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF --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 d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:40:24,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:40:24,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:40:24,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:40:24,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:40:24,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:40:24,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:40:24,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:40:24,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:40:24,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:40:24,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:40:24,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:40:24,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:40:24,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:40:24,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:40:24,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:40:24,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:40:24,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:40:24,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:40:24,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:40:24,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:40:24,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:40:24,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:40:24,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:40:24,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:40:24,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:40:24,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:40:24,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:40:24,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:40:24,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:40:24,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:40:24,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:40:24,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:40:24,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:40:24,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:40:24,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:40:24,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:40:24,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:40:24,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:40:24,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:40:24,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:40:24,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:40:24,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:40:24,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:40:24,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:40:24,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:40:24,373 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:40:24,373 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:40:24,373 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:40:24,373 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:40:24,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:40:24,374 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:40:24,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:40:24,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:40:24,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:40:24,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:40:24,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:40:24,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:40:24,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:40:24,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:40:24,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:40:24,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:40:24,379 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:40:24,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:40:24,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:40:24,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:40:24,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:40:24,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:40:24,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:40:24,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:24,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:40:24,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:40:24,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:40:24,382 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:40:24,382 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:40:24,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:40:24,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:40:24,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:40:24,383 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_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e [2021-11-13 01:40:24,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:40:24,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:40:24,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:40:24,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:40:24,840 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:40:24,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-11-13 01:40:24,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/ff8b77fad/809d354eb6dd4911a1592040b6e19b21/FLAG6b089c22c [2021-11-13 01:40:25,463 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:40:25,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-11-13 01:40:25,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/ff8b77fad/809d354eb6dd4911a1592040b6e19b21/FLAG6b089c22c [2021-11-13 01:40:25,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/data/ff8b77fad/809d354eb6dd4911a1592040b6e19b21 [2021-11-13 01:40:25,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:40:25,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:40:25,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:25,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:40:25,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:40:25,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:25" (1/1) ... [2021-11-13 01:40:25,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5627a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:25, skipping insertion in model container [2021-11-13 01:40:25,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:25" (1/1) ... [2021-11-13 01:40:25,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:40:25,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:26,103 WARN L228 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_5d11724a-8fab-46bb-9e79-dd58e8782663/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c[1751,1764] [2021-11-13 01:40:26,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:26,121 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:40:26,152 WARN L228 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_5d11724a-8fab-46bb-9e79-dd58e8782663/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c[1751,1764] [2021-11-13 01:40:26,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:26,197 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:40:26,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26 WrapperNode [2021-11-13 01:40:26,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:26,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:26,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:40:26,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:40:26,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:26,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:40:26,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:40:26,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:40:26,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:40:26,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:40:26,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:40:26,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:40:26,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (1/1) ... [2021-11-13 01:40:26,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:26,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:40:26,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:40:26,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:40:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:40:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:40:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-13 01:40:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:40:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:40:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:40:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-13 01:40:26,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:40:26,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:40:26,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:40:26,760 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-13 01:40:26,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:26 BoogieIcfgContainer [2021-11-13 01:40:26,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:40:26,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:40:26,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:40:26,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:40:26,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:25" (1/3) ... [2021-11-13 01:40:26,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3345e999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:26, skipping insertion in model container [2021-11-13 01:40:26,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:26" (2/3) ... [2021-11-13 01:40:26,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3345e999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:26, skipping insertion in model container [2021-11-13 01:40:26,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:26" (3/3) ... [2021-11-13 01:40:26,787 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2021-11-13 01:40:26,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:40:26,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:40:26,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:40:26,893 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:40:26,895 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:40:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:26,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:40:26,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:26,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:26,929 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:26,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2021-11-13 01:40:26,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:26,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876826719] [2021-11-13 01:40:26,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:26,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:26,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:26,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:26,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:40:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:27,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:40:27,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:27,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:27,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:27,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876826719] [2021-11-13 01:40:27,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876826719] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:27,268 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:27,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:40:27,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687987498] [2021-11-13 01:40:27,271 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:27,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:40:27,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:27,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:40:27,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:27,338 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:27,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:27,358 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-11-13 01:40:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:40:27,361 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 01:40:27,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:27,372 INFO L225 Difference]: With dead ends: 48 [2021-11-13 01:40:27,372 INFO L226 Difference]: Without dead ends: 22 [2021-11-13 01:40:27,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:27,407 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:27,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.86ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:40:27,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-13 01:40:27,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-13 01:40:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-11-13 01:40:27,443 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2021-11-13 01:40:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:27,444 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-11-13 01:40:27,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-11-13 01:40:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:40:27,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:27,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:27,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-13 01:40:27,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:27,661 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:27,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:27,666 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2021-11-13 01:40:27,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:27,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411429740] [2021-11-13 01:40:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:27,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:27,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:27,674 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:27,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:40:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:27,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:40:27,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:28,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:28,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:28,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411429740] [2021-11-13 01:40:28,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411429740] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:28,299 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:28,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:40:28,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815843900] [2021-11-13 01:40:28,300 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:28,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:40:28,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:28,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:40:28,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:40:28,305 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:28,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:28,492 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2021-11-13 01:40:28,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:40:28,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 01:40:28,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:28,501 INFO L225 Difference]: With dead ends: 55 [2021-11-13 01:40:28,501 INFO L226 Difference]: Without dead ends: 45 [2021-11-13 01:40:28,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:40:28,503 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 31 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.49ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 84.50ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:28,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 176 Invalid, 41 Unknown, 0 Unchecked, 4.49ms Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 14 Unchecked, 84.50ms Time] [2021-11-13 01:40:28,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-13 01:40:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 21. [2021-11-13 01:40:28,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-13 01:40:28,510 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2021-11-13 01:40:28,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:28,510 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-13 01:40:28,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:28,511 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-13 01:40:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 01:40:28,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:28,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:28,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:28,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:28,721 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1636973854, now seen corresponding path program 1 times [2021-11-13 01:40:28,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:28,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501000812] [2021-11-13 01:40:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:28,724 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:28,726 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:28,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:40:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:28,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:40:28,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:29,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:29,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:29,197 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:29,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501000812] [2021-11-13 01:40:29,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [501000812] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:29,199 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:29,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:40:29,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122186702] [2021-11-13 01:40:29,205 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:29,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:40:29,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:29,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:40:29,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:40:29,211 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:29,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:29,293 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-11-13 01:40:29,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:40:29,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-13 01:40:29,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:29,299 INFO L225 Difference]: With dead ends: 45 [2021-11-13 01:40:29,300 INFO L226 Difference]: Without dead ends: 32 [2021-11-13 01:40:29,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:40:29,302 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 28.70ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:29,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 82 Invalid, 19 Unknown, 0 Unchecked, 1.50ms Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 7 Unchecked, 28.70ms Time] [2021-11-13 01:40:29,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-13 01:40:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 20. [2021-11-13 01:40:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-11-13 01:40:29,310 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2021-11-13 01:40:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:29,311 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-11-13 01:40:29,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:29,311 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-13 01:40:29,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 01:40:29,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:29,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:29,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-13 01:40:29,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:29,528 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:29,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:29,529 INFO L85 PathProgramCache]: Analyzing trace with hash 812441883, now seen corresponding path program 1 times [2021-11-13 01:40:29,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:29,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541955098] [2021-11-13 01:40:29,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:29,530 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:29,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:29,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:29,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:40:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:29,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:40:29,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:29,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:29,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:29,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541955098] [2021-11-13 01:40:29,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541955098] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:29,953 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:29,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:40:29,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810610094] [2021-11-13 01:40:29,954 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:29,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:40:29,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:40:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:40:29,957 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:30,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:30,029 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-11-13 01:40:30,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:40:30,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-13 01:40:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:30,032 INFO L225 Difference]: With dead ends: 32 [2021-11-13 01:40:30,032 INFO L226 Difference]: Without dead ends: 20 [2021-11-13 01:40:30,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:40:30,035 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 25.01ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:30,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 89 Invalid, 15 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 7 Unchecked, 25.01ms Time] [2021-11-13 01:40:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-13 01:40:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-13 01:40:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-13 01:40:30,041 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 15 [2021-11-13 01:40:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:30,042 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-13 01:40:30,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:30,042 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-13 01:40:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 01:40:30,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:30,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:30,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:30,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:30,261 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2021-11-13 01:40:30,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:30,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499486852] [2021-11-13 01:40:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:30,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:30,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:30,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:30,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:40:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:30,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 01:40:30,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:30,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-13 01:40:30,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2021-11-13 01:40:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:30,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:30,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:30,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499486852] [2021-11-13 01:40:30,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499486852] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:30,711 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:30,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-13 01:40:30,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012973746] [2021-11-13 01:40:30,712 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:30,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 01:40:30,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:30,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 01:40:30,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:40:30,713 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:30,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:30,809 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-13 01:40:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:40:30,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-13 01:40:30,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:30,810 INFO L225 Difference]: With dead ends: 23 [2021-11-13 01:40:30,810 INFO L226 Difference]: Without dead ends: 20 [2021-11-13 01:40:30,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:40:30,812 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 36 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 42.95ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:30,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 39 Invalid, 22 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 3 Unchecked, 42.95ms Time] [2021-11-13 01:40:30,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-13 01:40:30,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-13 01:40:30,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-11-13 01:40:30,817 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2021-11-13 01:40:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:30,817 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-11-13 01:40:30,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-11-13 01:40:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 01:40:30,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:30,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:30,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:31,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:31,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:40:31,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2021-11-13 01:40:31,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:40:31,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609312562] [2021-11-13 01:40:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:31,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:40:31,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:40:31,034 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:40:31,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:40:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:31,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 01:40:31,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:40:31,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-13 01:40:31,312 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-13 01:40:31,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 45 [2021-11-13 01:40:31,613 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 01:40:31,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 28 [2021-11-13 01:40:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:31,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:40:32,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:32,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:40:32,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609312562] [2021-11-13 01:40:32,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609312562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:32,648 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:32,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 19 [2021-11-13 01:40:32,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578572407] [2021-11-13 01:40:32,649 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:32,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 01:40:32,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:40:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 01:40:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-13 01:40:32,651 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:32,829 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-11-13 01:40:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 01:40:32,829 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-13 01:40:32,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:32,830 INFO L225 Difference]: With dead ends: 20 [2021-11-13 01:40:32,830 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:40:32,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2021-11-13 01:40:32,832 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 11.43ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:32,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 78 Invalid, 45 Unknown, 0 Unchecked, 0.68ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 38 Unchecked, 11.43ms Time] [2021-11-13 01:40:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:40:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:40:32,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:32,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:40:32,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-11-13 01:40:32,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:32,834 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:40:32,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:32,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:40:32,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:40:32,838 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:40:32,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:40:33,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:40:33,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:40:33,120 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 48) no Hoare annotation was computed. [2021-11-13 01:40:33,120 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2021-11-13 01:40:33,120 INFO L854 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short12#1| (= |ULTIMATE.start_round_float_#res#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= .cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15|) (_ bv0 32))) (= .cse0 (_ +zero 8 24)))))) (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24))) [2021-11-13 01:40:33,120 INFO L858 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2021-11-13 01:40:33,120 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24)) [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:40:33,121 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 41) no Hoare annotation was computed. [2021-11-13 01:40:33,122 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-11-13 01:40:33,122 INFO L861 garLoopResultBuilder]: At program point L86(lines 69 87) the Hoare annotation is: true [2021-11-13 01:40:33,122 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-13 01:40:33,122 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-11-13 01:40:33,122 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2021-11-13 01:40:33,122 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-11-13 01:40:33,122 INFO L854 garLoopResultBuilder]: At program point L66(lines 57 67) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) |ULTIMATE.start_main_#t~short12#1| (= |ULTIMATE.start_round_float_#res#1| (_ +zero 8 24)) (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24))) [2021-11-13 01:40:33,122 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:40:33,123 INFO L854 garLoopResultBuilder]: At program point L54(lines 14 55) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 |ULTIMATE.start_round_float_#res#1|) (= .cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15|) (_ bv0 32))) (= .cse0 (_ +zero 8 24)))))) (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24))) [2021-11-13 01:40:33,123 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2021-11-13 01:40:33,123 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2021-11-13 01:40:33,123 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2021-11-13 01:40:33,132 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-13 01:40:33,134 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:40:33,150 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,151 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,152 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,155 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,156 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,161 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,162 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,162 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,163 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,164 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,165 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:40:33 BoogieIcfgContainer [2021-11-13 01:40:33,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:40:33,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:40:33,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:40:33,167 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:40:33,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:26" (3/4) ... [2021-11-13 01:40:33,171 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:40:33,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-13 01:40:33,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 01:40:33,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:40:33,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:40:33,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == \result && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2021-11-13 01:40:33,215 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-res == 0.0f && __signbit_float(res) == 0-aux && \result == ~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == x && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() [2021-11-13 01:40:33,215 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0bv32 && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2021-11-13 01:40:33,230 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:40:33,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:40:33,231 INFO L158 Benchmark]: Toolchain (without parser) took 7376.56ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 48.6MB in the beginning and 49.6MB in the end (delta: -994.4kB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2021-11-13 01:40:33,231 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 72.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:33,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.87ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 68.2MB in the end (delta: -19.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-13 01:40:33,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.34ms. Allocated memory is still 83.9MB. Free memory was 68.2MB in the beginning and 66.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:33,233 INFO L158 Benchmark]: Boogie Preprocessor took 44.81ms. Allocated memory is still 83.9MB. Free memory was 66.5MB in the beginning and 65.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:33,233 INFO L158 Benchmark]: RCFGBuilder took 455.22ms. Allocated memory is still 83.9MB. Free memory was 65.0MB in the beginning and 52.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:40:33,234 INFO L158 Benchmark]: TraceAbstraction took 6402.10ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 52.3MB in the beginning and 52.7MB in the end (delta: -387.4kB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2021-11-13 01:40:33,235 INFO L158 Benchmark]: Witness Printer took 63.48ms. Allocated memory is still 121.6MB. Free memory was 52.7MB in the beginning and 49.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:33,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 65.1MB in the beginning and 65.0MB in the end (delta: 72.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.87ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 68.2MB in the end (delta: -19.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.34ms. Allocated memory is still 83.9MB. Free memory was 68.2MB in the beginning and 66.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.81ms. Allocated memory is still 83.9MB. Free memory was 66.5MB in the beginning and 65.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 455.22ms. Allocated memory is still 83.9MB. Free memory was 65.0MB in the beginning and 52.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6402.10ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 52.3MB in the beginning and 52.7MB in the end (delta: -387.4kB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Witness Printer took 63.48ms. Allocated memory is still 121.6MB. Free memory was 52.7MB in the beginning and 49.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] * 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 - PositiveResult [Line: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 192.60ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 494 SdHoareTripleChecker+Invalid, 158.49ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 69 IncrementalHoareTripleChecker+Unchecked, 374 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 120 mSDtfsCounter, 67 mSolverCounterSat, 10.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 106 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 137 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 152 ConstructedInterpolants, 41 QuantifiedInterpolants, 1455 SizeOfPredicates, 39 NumberOfNonLiveVariables, 297 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 14]: Loop Invariant [2021-11-13 01:40:33,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,264 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,274 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == \result && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((\result == 0bv32 && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 60]: Loop Invariant [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15,QUANTIFIED] [2021-11-13 01:40:33,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] [2021-11-13 01:40:33,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: ((aux-res == 0.0f && __signbit_float(res) == 0-aux && \result == ~Pluszero~LONGDOUBLE()) && (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == x && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_15][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_11][0bv32][22:0]) == ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE() RESULT: Ultimate proved your program to be correct! [2021-11-13 01:40:33,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d11724a-8fab-46bb-9e79-dd58e8782663/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE