./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:57:19,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:57:19,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:57:19,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:57:19,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:57:19,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:57:19,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:57:19,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:57:19,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:57:19,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:57:19,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:57:19,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:57:19,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:57:19,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:57:19,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:57:19,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:57:19,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:57:19,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:57:19,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:57:19,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:57:19,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:57:19,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:57:19,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:57:19,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:57:19,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:57:19,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:57:19,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:57:19,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:57:19,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:57:19,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:57:19,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:57:19,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:57:19,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:57:19,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:57:19,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:57:19,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:57:19,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:57:19,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:57:19,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:57:19,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:57:19,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:57:19,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:57:19,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:57:19,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:57:19,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:57:19,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:57:19,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:57:19,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:57:19,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:57:19,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:57:19,159 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:57:19,159 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:57:19,159 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:57:19,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:57:19,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:57:19,160 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:57:19,160 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:57:19,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:57:19,161 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:57:19,161 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:57:19,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:57:19,162 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:57:19,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:57:19,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:57:19,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:57:19,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:57:19,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:57:19,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:57:19,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:57:19,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:57:19,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:57:19,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:57:19,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:57:19,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:57:19,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:19,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:57:19,166 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:57:19,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:57:19,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:57:19,167 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:57:19,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:57:19,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:57:19,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:57:19,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2022-11-25 23:57:19,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:57:19,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:57:19,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:57:19,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:57:19,462 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:57:19,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-25 23:57:22,554 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:57:22,788 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:57:22,789 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-25 23:57:22,798 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data/25fb0e7ba/736f458ef0db48a1b8c06104e57dd27b/FLAG0c000b099 [2022-11-25 23:57:22,818 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data/25fb0e7ba/736f458ef0db48a1b8c06104e57dd27b [2022-11-25 23:57:22,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:57:22,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:57:22,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:22,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:57:22,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:57:22,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:22" (1/1) ... [2022-11-25 23:57:22,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d56caac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:22, skipping insertion in model container [2022-11-25 23:57:22,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:22" (1/1) ... [2022-11-25 23:57:22,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:57:22,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:57:23,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-25 23:57:23,034 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-25 23:57:23,039 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-25 23:57:23,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:23,053 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:57:23,070 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-25 23:57:23,074 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-25 23:57:23,077 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-25 23:57:23,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:23,093 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:57:23,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23 WrapperNode [2022-11-25 23:57:23,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:23,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:23,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:57:23,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:57:23,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,130 INFO L138 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2022-11-25 23:57:23,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:23,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:57:23,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:57:23,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:57:23,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:57:23,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:57:23,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:57:23,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:57:23,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (1/1) ... [2022-11-25 23:57:23,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:23,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:57:23,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:57:23,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:57:23,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:57:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:57:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:57:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:57:23,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:57:23,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:57:23,409 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:57:23,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:57:23,453 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:57:23,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:23 BoogieIcfgContainer [2022-11-25 23:57:23,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:57:23,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:57:23,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:57:23,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:57:23,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:57:22" (1/3) ... [2022-11-25 23:57:23,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efd56f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:23, skipping insertion in model container [2022-11-25 23:57:23,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:23" (2/3) ... [2022-11-25 23:57:23,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4efd56f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:23, skipping insertion in model container [2022-11-25 23:57:23,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:23" (3/3) ... [2022-11-25 23:57:23,466 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i [2022-11-25 23:57:23,487 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:57:23,487 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 23:57:23,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:57:23,550 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c7a11ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:57:23,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 23:57:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 10 states have (on average 1.6) internal successors, (16), 13 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) [2022-11-25 23:57:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 23:57:23,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:23,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 23:57:23,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:57:23,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:23,580 INFO L85 PathProgramCache]: Analyzing trace with hash 89758, now seen corresponding path program 1 times [2022-11-25 23:57:23,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:57:23,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716987212] [2022-11-25 23:57:23,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:57:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:57:23,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:57:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:57:23,787 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:57:23,789 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:57:23,790 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-25 23:57:23,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-11-25 23:57:23,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-11-25 23:57:23,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:57:23,800 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:57:23,805 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:57:23,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:57:23 BoogieIcfgContainer [2022-11-25 23:57:23,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:57:23,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:57:23,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:57:23,828 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:57:23,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:23" (3/4) ... [2022-11-25 23:57:23,832 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:57:23,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:57:23,833 INFO L158 Benchmark]: Toolchain (without parser) took 1006.49ms. Allocated memory is still 182.5MB. Free memory was 140.0MB in the beginning and 150.0MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:57:23,833 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:57:23,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.90ms. Allocated memory is still 182.5MB. Free memory was 140.0MB in the beginning and 127.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:57:23,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.92ms. Allocated memory is still 182.5MB. Free memory was 127.5MB in the beginning and 126.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:57:23,835 INFO L158 Benchmark]: Boogie Preprocessor took 23.30ms. Allocated memory is still 182.5MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:57:23,835 INFO L158 Benchmark]: RCFGBuilder took 301.59ms. Allocated memory is still 182.5MB. Free memory was 124.8MB in the beginning and 113.8MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:57:23,836 INFO L158 Benchmark]: TraceAbstraction took 368.40ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 150.0MB in the end (delta: -37.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:57:23,836 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 182.5MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:57:23,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.90ms. Allocated memory is still 182.5MB. Free memory was 140.0MB in the beginning and 127.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.92ms. Allocated memory is still 182.5MB. Free memory was 127.5MB in the beginning and 126.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.30ms. Allocated memory is still 182.5MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.59ms. Allocated memory is still 182.5MB. Free memory was 124.8MB in the beginning and 113.8MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 368.40ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 150.0MB in the end (delta: -37.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 182.5MB. Free memory is still 150.0MB. 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: 21]: 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 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L48] float f=__VERIFIER_nondet_float(); [L49] CALL bug(f) [L17] COND FALSE !(!(min == 0x1.fffffep-105f)) [L18] float modifier = (0x1.0p-23 * (1<<1)); [L19] float ulpdiff = min * modifier; VAL [\old(min)=53, min=53] [L21] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=53, min=53] [L21] reach_error() VAL [\old(min)=53, min=53] - UnprovableResult [Line: 32]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:57:23,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:57:26,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:57:26,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:57:26,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:57:26,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:57:26,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:57:26,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:57:26,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:57:26,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:57:26,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:57:26,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:57:26,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:57:26,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:57:26,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:57:26,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:57:26,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:57:26,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:57:26,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:57:26,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:57:26,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:57:26,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:57:26,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:57:26,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:57:26,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:57:26,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:57:26,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:57:26,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:57:26,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:57:26,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:57:26,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:57:26,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:57:26,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:57:26,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:57:26,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:57:26,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:57:26,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:57:26,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:57:26,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:57:26,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:57:26,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:57:26,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:57:26,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 23:57:26,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:57:26,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:57:26,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:57:26,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:57:26,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:57:26,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:57:26,376 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:57:26,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:57:26,376 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:57:26,376 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:57:26,377 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:57:26,378 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:57:26,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:57:26,379 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:57:26,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:57:26,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:57:26,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:57:26,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:57:26,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:57:26,380 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:57:26,380 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:57:26,381 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:57:26,381 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:57:26,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:57:26,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:57:26,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:57:26,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:57:26,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:57:26,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:57:26,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:26,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:57:26,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:57:26,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:57:26,384 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:57:26,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:57:26,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:57:26,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:57:26,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:57:26,385 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_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2022-11-25 23:57:26,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:57:26,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:57:26,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:57:26,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:57:26,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:57:26,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-25 23:57:29,786 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:57:30,091 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:57:30,092 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i [2022-11-25 23:57:30,099 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data/2ac454d91/edf1383da4594f15a5aa4e72debf847f/FLAG08e07a7dc [2022-11-25 23:57:30,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/data/2ac454d91/edf1383da4594f15a5aa4e72debf847f [2022-11-25 23:57:30,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:57:30,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:57:30,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:30,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:57:30,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:57:30,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a2f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30, skipping insertion in model container [2022-11-25 23:57:30,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:57:30,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:57:30,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-25 23:57:30,304 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-25 23:57:30,308 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-25 23:57:30,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:30,325 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:57:30,341 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2022-11-25 23:57:30,345 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2022-11-25 23:57:30,348 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2022-11-25 23:57:30,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:57:30,364 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:57:30,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30 WrapperNode [2022-11-25 23:57:30,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:57:30,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:30,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:57:30,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:57:30,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,403 INFO L138 Inliner]: procedures = 19, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2022-11-25 23:57:30,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:57:30,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:57:30,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:57:30,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:57:30,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:57:30,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:57:30,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:57:30,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:57:30,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (1/1) ... [2022-11-25 23:57:30,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:57:30,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:57:30,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:57:30,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:57:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:57:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:57:30,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:57:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:57:30,620 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:57:30,623 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:57:33,079 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:57:33,086 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:57:33,086 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:57:33,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:33 BoogieIcfgContainer [2022-11-25 23:57:33,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:57:33,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:57:33,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:57:33,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:57:33,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:57:30" (1/3) ... [2022-11-25 23:57:33,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed6ab64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:33, skipping insertion in model container [2022-11-25 23:57:33,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:57:30" (2/3) ... [2022-11-25 23:57:33,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed6ab64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:57:33, skipping insertion in model container [2022-11-25 23:57:33,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:33" (3/3) ... [2022-11-25 23:57:33,099 INFO L112 eAbstractionObserver]: Analyzing ICFG float20.i [2022-11-25 23:57:33,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:57:33,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 23:57:33,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:57:33,288 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@bb1bf1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:57:33,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 23:57:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:57:33,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:33,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:57:33,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:57:33,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-25 23:57:33,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:57:33,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107176824] [2022-11-25 23:57:33,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:33,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:57:33,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:57:33,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:57:33,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:57:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:33,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:57:33,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:57:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:33,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:57:33,466 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:57:33,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107176824] [2022-11-25 23:57:33,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107176824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:33,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:33,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:57:33,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436181883] [2022-11-25 23:57:33,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:33,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:57:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:57:33,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:57:33,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:57:33,507 INFO L87 Difference]: Start difference. First operand has 23 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 22 states have internal predecessors, (28), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:33,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:33,524 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-11-25 23:57:33,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:57:33,527 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-25 23:57:33,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:33,535 INFO L225 Difference]: With dead ends: 43 [2022-11-25 23:57:33,535 INFO L226 Difference]: Without dead ends: 19 [2022-11-25 23:57:33,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:57:33,542 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:33,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:57:33,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-25 23:57:33,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-25 23:57:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.125) internal successors, (18), 18 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) [2022-11-25 23:57:33,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-11-25 23:57:33,575 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 6 [2022-11-25 23:57:33,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:33,576 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-11-25 23:57:33,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:33,577 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-11-25 23:57:33,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:57:33,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:33,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:57:33,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:57:33,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:57:33,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:57:33,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:33,793 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-25 23:57:33,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:57:33,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785638035] [2022-11-25 23:57:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:33,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:57:33,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:57:33,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:57:33,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:57:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:33,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:57:33,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:57:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:34,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:57:34,451 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:57:34,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785638035] [2022-11-25 23:57:34,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785638035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:34,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:34,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:34,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937273862] [2022-11-25 23:57:34,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:34,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:34,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:57:34,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:34,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:34,454 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:37,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:57:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:57:37,305 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-11-25 23:57:37,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:57:37,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-11-25 23:57:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:57:37,307 INFO L225 Difference]: With dead ends: 19 [2022-11-25 23:57:37,307 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 23:57:37,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:57:37,309 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:57:37,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 14 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 23:57:37,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 23:57:37,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 23:57:37,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 16 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) [2022-11-25 23:57:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-11-25 23:57:37,313 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2022-11-25 23:57:37,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:57:37,313 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-11-25 23:57:37,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:37,314 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-11-25 23:57:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:57:37,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:57:37,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:57:37,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:57:37,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:57:37,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:57:37,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:57:37,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1928169781, now seen corresponding path program 1 times [2022-11-25 23:57:37,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:57:37,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768508597] [2022-11-25 23:57:37,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:57:37,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:57:37,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:57:37,519 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:57:37,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 23:57:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:57:37,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 23:57:37,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:57:52,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:57:52,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:57:52,540 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:57:52,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768508597] [2022-11-25 23:57:52,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768508597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:57:52,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:57:52,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:57:52,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966397968] [2022-11-25 23:57:52,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:57:52,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:57:52,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:57:52,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:57:52,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:57:52,543 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:57:54,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:57:55,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:58:01,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:10,518 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:58:12,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 23:58:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:12,805 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-11-25 23:58:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-25 23:58:12,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:12,807 INFO L225 Difference]: With dead ends: 17 [2022-11-25 23:58:12,807 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 23:58:12,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:58:12,809 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:12,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-25 23:58:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 23:58:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 23:58:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2022-11-25 23:58:12,814 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 10 [2022-11-25 23:58:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:12,814 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2022-11-25 23:58:12,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:12,815 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2022-11-25 23:58:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:58:12,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:58:12,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:58:12,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-25 23:58:13,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:58:13,027 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:58:13,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:58:13,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1162826544, now seen corresponding path program 1 times [2022-11-25 23:58:13,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:58:13,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280897026] [2022-11-25 23:58:13,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:58:13,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:58:13,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:58:13,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:58:13,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 23:58:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:58:13,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:58:13,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:58:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:58:14,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:58:14,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:58:14,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280897026] [2022-11-25 23:58:14,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280897026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:58:14,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:58:14,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:58:14,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202036496] [2022-11-25 23:58:14,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:58:14,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:58:14,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:58:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:58:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:58:14,124 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:16,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 23:58:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:58:17,159 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-25 23:58:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:58:17,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 23:58:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:58:17,160 INFO L225 Difference]: With dead ends: 15 [2022-11-25 23:58:17,160 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:58:17,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:58:17,161 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:58:17,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 23:58:17,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:58:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:58:17,163 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) [2022-11-25 23:58:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:58:17,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-25 23:58:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:58:17,164 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:58:17,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:58:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:58:17,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:58:17,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-25 23:58:17,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-11-25 23:58:17,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-11-25 23:58:17,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-25 23:58:17,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:58:17,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:58:17,585 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-11-25 23:58:17,586 INFO L899 garLoopResultBuilder]: For program point L27-2(line 27) no Hoare annotation was computed. [2022-11-25 23:58:17,586 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2022-11-25 23:58:17,586 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-25 23:58:17,586 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 23:58:17,586 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-25 23:58:17,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:58:17,587 INFO L895 garLoopResultBuilder]: At program point L32-3(lines 26 35) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2022-11-25 23:58:17,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 23:58:17,587 INFO L902 garLoopResultBuilder]: At program point L57(lines 47 58) the Hoare annotation is: true [2022-11-25 23:58:17,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2022-11-25 23:58:17,588 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:58:17,588 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-11-25 23:58:17,588 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-11-25 23:58:17,588 INFO L895 garLoopResultBuilder]: At program point L21-3(lines 16 24) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))) (and (fp.eq |ULTIMATE.start_bug_~min#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_bug_~min#1| (_ FloatingPoint 8 24))) (and (fp.eq |ULTIMATE.start_bug_~min#1| .cse0) (= |ULTIMATE.start_bug_~ulpdiff~0#1| (fp.mul currentRoundingMode |ULTIMATE.start_bug_~min#1| ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))))) [2022-11-25 23:58:17,589 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2022-11-25 23:58:17,589 INFO L899 garLoopResultBuilder]: For program point L17-2(line 17) no Hoare annotation was computed. [2022-11-25 23:58:17,589 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2022-11-25 23:58:17,589 INFO L899 garLoopResultBuilder]: For program point L42-1(line 42) no Hoare annotation was computed. [2022-11-25 23:58:17,589 INFO L902 garLoopResultBuilder]: At program point L42-3(lines 37 45) the Hoare annotation is: true [2022-11-25 23:58:17,589 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-25 23:58:17,590 INFO L899 garLoopResultBuilder]: For program point L38-2(line 38) no Hoare annotation was computed. [2022-11-25 23:58:17,590 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2022-11-25 23:58:17,594 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 23:58:17,596 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:58:17,606 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,607 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,607 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,611 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,612 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,612 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,613 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,613 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:58:17 BoogieIcfgContainer [2022-11-25 23:58:17,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:58:17,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:58:17,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:58:17,615 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:58:17,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:57:33" (3/4) ... [2022-11-25 23:58:17,619 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:58:17,631 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 23:58:17,631 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 23:58:17,632 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 23:58:17,632 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:58:17,662 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) [2022-11-25 23:58:17,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:58:17,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:58:17,684 INFO L158 Benchmark]: Toolchain (without parser) took 47565.97ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 69.9MB in the beginning and 79.3MB in the end (delta: -9.4MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-25 23:58:17,684 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 81.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:58:17,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.29ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 56.9MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:58:17,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 55.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:58:17,685 INFO L158 Benchmark]: Boogie Preprocessor took 26.49ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 53.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:58:17,686 INFO L158 Benchmark]: RCFGBuilder took 2657.29ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 43.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:58:17,686 INFO L158 Benchmark]: TraceAbstraction took 44522.29ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 43.1MB in the beginning and 81.6MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:58:17,687 INFO L158 Benchmark]: Witness Printer took 68.57ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 79.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:58:17,689 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 92.3MB. Free memory was 69.6MB in the beginning and 69.5MB in the end (delta: 81.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.29ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 56.9MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 55.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.49ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 53.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2657.29ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 43.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44522.29ms. Allocated memory was 92.3MB in the beginning and 125.8MB in the end (delta: 33.6MB). Free memory was 43.1MB in the beginning and 81.6MB in the end (delta: -38.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.57ms. Allocated memory is still 125.8MB. Free memory was 81.6MB in the beginning and 79.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 42]: 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, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 44.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 16.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 16.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 45 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 16.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 3 QuantifiedInterpolants, 163 SizeOfPredicates, 12 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 3 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2022-11-25 23:58:17,715 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,715 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,715 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,716 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,717 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] [2022-11-25 23:58:17,717 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min#1,QUANTIFIED] Derived loop invariant: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min#1 : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min#1, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) - InvariantResult [Line: 26]: Loop Invariant [2022-11-25 23:58:17,718 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 23:58:17,718 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:58:17,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e720eb8d-9a20-4c11-a7a5-b8f3b9cdfc23/bin/utaipan-ByfvJB40ur/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