./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh --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 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e --- 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-2329fc7 [2022-12-14 06:07:33,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:07:33,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:07:33,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:07:33,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:07:33,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:07:33,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:07:33,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:07:33,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:07:33,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:07:33,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:07:33,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:07:33,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:07:33,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:07:33,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:07:33,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:07:33,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:07:33,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:07:33,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:07:33,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:07:33,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:07:33,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:07:33,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:07:33,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:07:33,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:07:33,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:07:33,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:07:33,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:07:33,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:07:33,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:07:33,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:07:33,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:07:33,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:07:33,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:07:33,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:07:33,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:07:33,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:07:33,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:07:33,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:07:33,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:07:33,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:07:33,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:07:33,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:07:33,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:07:33,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:07:33,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:07:33,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:07:33,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:07:33,834 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:07:33,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:07:33,834 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:07:33,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:07:33,834 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:07:33,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:07:33,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:07:33,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:07:33,835 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:07:33,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:07:33,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:07:33,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:07:33,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:07:33,837 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:07:33,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:07:33,838 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:07:33,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:07:33,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:07:33,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:33,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:07:33,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:07:33,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:07:33,840 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e [2022-12-14 06:07:34,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:07:34,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:07:34,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:07:34,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:07:34,044 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:07:34,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-12-14 06:07:36,720 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:07:36,867 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:07:36,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-12-14 06:07:36,874 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data/1eaa705f2/fb25f101cf7549da9664bd251dcd9ff5/FLAG522f388b8 [2022-12-14 06:07:36,888 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data/1eaa705f2/fb25f101cf7549da9664bd251dcd9ff5 [2022-12-14 06:07:36,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:07:36,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:07:36,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:36,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:07:36,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:07:36,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:36" (1/1) ... [2022-12-14 06:07:36,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a98af61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:36, skipping insertion in model container [2022-12-14 06:07:36,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:36" (1/1) ... [2022-12-14 06:07:36,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:07:36,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:07:37,044 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-12-14 06:07:37,051 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-12-14 06:07:37,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:37,065 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:07:37,078 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-12-14 06:07:37,082 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-12-14 06:07:37,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:37,097 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:07:37,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37 WrapperNode [2022-12-14 06:07:37,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:37,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:37,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:07:37,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:07:37,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,124 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 122 [2022-12-14 06:07:37,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:37,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:07:37,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:07:37,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:07:37,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:07:37,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:07:37,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:07:37,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:07:37,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (1/1) ... [2022-12-14 06:07:37,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:37,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:07:37,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:07:37,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:07:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:07:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:07:37,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:07:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:07:37,260 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:07:37,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:07:37,369 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:07:37,389 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:07:37,389 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:07:37,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:37 BoogieIcfgContainer [2022-12-14 06:07:37,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:07:37,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:07:37,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:07:37,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:07:37,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:07:36" (1/3) ... [2022-12-14 06:07:37,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9acbc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:37, skipping insertion in model container [2022-12-14 06:07:37,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:37" (2/3) ... [2022-12-14 06:07:37,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9acbc77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:37, skipping insertion in model container [2022-12-14 06:07:37,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:37" (3/3) ... [2022-12-14 06:07:37,397 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1.c.v+lhb-reducer.c [2022-12-14 06:07:37,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:07:37,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:07:37,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:07:37,451 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;@495a1f15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:07:37,451 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:07:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:07:37,459 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:37,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:37,460 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:37,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash -576365883, now seen corresponding path program 1 times [2022-12-14 06:07:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:07:37,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941323958] [2022-12-14 06:07:37,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:37,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:07:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:07:37,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:07:37,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941323958] [2022-12-14 06:07:37,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941323958] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:37,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:37,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:07:37,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004645843] [2022-12-14 06:07:37,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:37,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:07:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:07:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:07:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:07:37,691 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-12-14 06:07:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:37,763 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-12-14 06:07:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:07:37,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2022-12-14 06:07:37,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:37,771 INFO L225 Difference]: With dead ends: 37 [2022-12-14 06:07:37,771 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:07:37,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:07:37,775 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 37 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:37,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 92 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:07:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:07:37,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-12-14 06:07:37,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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) [2022-12-14 06:07:37,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-12-14 06:07:37,799 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 10 [2022-12-14 06:07:37,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:37,800 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-12-14 06:07:37,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-12-14 06:07:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-12-14 06:07:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:07:37,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:37,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:37,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:07:37,801 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:37,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash -508829686, now seen corresponding path program 1 times [2022-12-14 06:07:37,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:07:37,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627098313] [2022-12-14 06:07:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:37,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:07:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:07:37,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:07:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:07:37,833 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:07:37,833 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:07:37,834 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 06:07:37,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 06:07:37,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:07:37,839 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 06:07:37,841 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:07:37,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:07:37 BoogieIcfgContainer [2022-12-14 06:07:37,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:07:37,857 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:07:37,857 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:07:37,857 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:07:37,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:37" (3/4) ... [2022-12-14 06:07:37,859 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:07:37,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:07:37,860 INFO L158 Benchmark]: Toolchain (without parser) took 968.27ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 86.4MB in the beginning and 113.8MB in the end (delta: -27.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-12-14 06:07:37,860 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 85.5MB in the beginning and 85.5MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:37,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.62ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 75.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 06:07:37,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.55ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:37,862 INFO L158 Benchmark]: Boogie Preprocessor took 19.57ms. Allocated memory is still 121.6MB. Free memory was 73.4MB in the beginning and 72.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:07:37,862 INFO L158 Benchmark]: RCFGBuilder took 245.58ms. Allocated memory is still 121.6MB. Free memory was 71.8MB in the beginning and 59.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 06:07:37,862 INFO L158 Benchmark]: TraceAbstraction took 463.31ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 58.7MB in the beginning and 113.8MB in the end (delta: -55.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:37,863 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 157.3MB. Free memory is still 113.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:07:37,865 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 85.5MB in the beginning and 85.5MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.62ms. Allocated memory is still 121.6MB. Free memory was 86.4MB in the beginning and 75.1MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.55ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 73.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.57ms. Allocated memory is still 121.6MB. Free memory was 73.4MB in the beginning and 72.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 245.58ms. Allocated memory is still 121.6MB. Free memory was 71.8MB in the beginning and 59.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 463.31ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 58.7MB in the beginning and 113.8MB in the end (delta: -55.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 157.3MB. Free memory is still 113.8MB. 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: 58]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 45, overapproximation of to_real at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 173. Possible FailurePath: [L1] int __return_main; [L13] int __tmp_129_0; [L14] int __tmp_129_1; [L15] int __tmp_129_2; [L16] int __return_134; [L19] double main__E0; [L20] double main__E1; [L21] double main__S; [L22] int main__i; [L23] main__E1 = 0 [L24] main__S = 0 [L25] main__i = 0 VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__i=0] [L26] COND TRUE main__i <= 1000000 [L28] main__E0 = __VERIFIER_nondet_double() [L29] int main____CPAchecker_TMP_0; VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=53, main__i=0] [L30] COND TRUE main__E0 >= -1.0 VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main__E0=53, main__i=0] [L32] COND TRUE main__E0 <= 1.0 [L34] main____CPAchecker_TMP_0 = 1 VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main__E0=53, main__i=0] [L35] COND TRUE main____CPAchecker_TMP_0 != 0 [L37] int main____CPAchecker_TMP_1; [L38] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int() [L39] COND TRUE !(main____CPAchecker_TMP_1 == 0) [L41] main__S = 0 [L43] main__E1 = main__E0 [L44] int main____CPAchecker_TMP_2; VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main__E0=53, main__E1=53, main__i=0] [L45] COND FALSE !(main__S >= -10000.0) VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main__E0=53, main__E1=53, main__i=0] [L162] main____CPAchecker_TMP_2 = 0 VAL [__return_134=0, __return_main=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__E0=53, main__E1=53, main__i=0] [L52] int __tmp_1; [L53] __tmp_1 = main____CPAchecker_TMP_2 [L54] int __VERIFIER_assert__cond; [L55] __VERIFIER_assert__cond = __tmp_1 VAL [__return_134=0, __return_main=0, __tmp_1=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__E0=53, main__E1=53, main__i=0] [L56] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_134=0, __return_main=0, __tmp_1=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__E0=53, main__E1=53, main__i=0] [L58] reach_error() VAL [__return_134=0, __return_main=0, __tmp_1=0, __tmp_129_0=0, __tmp_129_1=0, __tmp_129_2=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=-1, main____CPAchecker_TMP_2=0, main__E0=53, main__E1=53, main__i=0] - UnprovableResult [Line: 104]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 31 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 06:07:37,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh --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 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e --- 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-2329fc7 [2022-12-14 06:07:39,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:07:39,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:07:39,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:07:39,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:07:39,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:07:39,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:07:39,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:07:39,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:07:39,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:07:39,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:07:39,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:07:39,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:07:39,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:07:39,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:07:39,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:07:39,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:07:39,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:07:39,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:07:39,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:07:39,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:07:39,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:07:39,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:07:39,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:07:39,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:07:39,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:07:39,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:07:39,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:07:39,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:07:39,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:07:39,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:07:39,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:07:39,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:07:39,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:07:39,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:07:39,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:07:39,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:07:39,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:07:39,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:07:39,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:07:39,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:07:39,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 06:07:39,561 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:07:39,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:07:39,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:07:39,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:07:39,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:07:39,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:07:39,563 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:07:39,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:07:39,563 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:07:39,563 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:07:39,563 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:07:39,563 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:07:39,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:07:39,564 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:07:39,565 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:07:39,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:07:39,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:07:39,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:07:39,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:07:39,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:07:39,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:39,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:07:39,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:07:39,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:07:39,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:07:39,568 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2c506f8c4790ab21ed41c19bd1ea2839907b43d1ff7cacbbc276ad919ab4e [2022-12-14 06:07:39,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:07:39,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:07:39,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:07:39,821 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:07:39,821 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:07:39,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-12-14 06:07:42,447 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:07:42,587 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:07:42,587 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c [2022-12-14 06:07:42,594 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data/4f80acbd3/da9533fb70a84f7f8d90a68a82a1fee8/FLAGef48d2fb1 [2022-12-14 06:07:42,605 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/data/4f80acbd3/da9533fb70a84f7f8d90a68a82a1fee8 [2022-12-14 06:07:42,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:07:42,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:07:42,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:42,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:07:42,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:07:42,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed869f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42, skipping insertion in model container [2022-12-14 06:07:42,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:07:42,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:07:42,778 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-12-14 06:07:42,785 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-12-14 06:07:42,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:42,799 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:07:42,810 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[1355,1368] [2022-12-14 06:07:42,813 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_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/sv-benchmarks/c/float-benchs/filter1.c.v+lhb-reducer.c[2394,2407] [2022-12-14 06:07:42,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:07:42,826 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:07:42,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42 WrapperNode [2022-12-14 06:07:42,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:07:42,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:42,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:07:42,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:07:42,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,853 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121 [2022-12-14 06:07:42,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:07:42,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:07:42,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:07:42,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:07:42,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:07:42,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:07:42,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:07:42,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:07:42,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (1/1) ... [2022-12-14 06:07:42,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:07:42,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:07:42,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:07:42,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:07:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:07:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:07:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:07:42,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:07:42,992 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:07:42,994 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:07:47,302 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:07:47,307 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:07:47,307 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:07:47,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:47 BoogieIcfgContainer [2022-12-14 06:07:47,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:07:47,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:07:47,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:07:47,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:07:47,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:07:42" (1/3) ... [2022-12-14 06:07:47,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbfaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:47, skipping insertion in model container [2022-12-14 06:07:47,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:07:42" (2/3) ... [2022-12-14 06:07:47,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fbfaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:07:47, skipping insertion in model container [2022-12-14 06:07:47,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:07:47" (3/3) ... [2022-12-14 06:07:47,317 INFO L112 eAbstractionObserver]: Analyzing ICFG filter1.c.v+lhb-reducer.c [2022-12-14 06:07:47,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:07:47,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:07:47,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:07:47,381 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;@70fc5c55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:07:47,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:07:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 30 states have (on average 1.6) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:47,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 06:07:47,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:47,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:47,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:47,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:47,392 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2022-12-14 06:07:47,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:47,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130499722] [2022-12-14 06:07:47,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:47,401 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 [2022-12-14 06:07:47,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:47,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:07:47,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:47,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:07:47,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:07:47,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:07:47,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:07:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130499722] [2022-12-14 06:07:47,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130499722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:47,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:47,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:07:47,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781829999] [2022-12-14 06:07:47,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:47,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:07:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:07:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:07:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:07:47,569 INFO L87 Difference]: Start difference. First operand has 33 states, 30 states have (on average 1.6) internal successors, (48), 32 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:47,666 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2022-12-14 06:07:47,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:07:47,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 06:07:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:47,674 INFO L225 Difference]: With dead ends: 59 [2022-12-14 06:07:47,674 INFO L226 Difference]: Without dead ends: 48 [2022-12-14 06:07:47,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:07:47,678 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 28 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:47,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 129 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:07:47,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-14 06:07:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2022-12-14 06:07:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2022-12-14 06:07:47,701 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 13 [2022-12-14 06:07:47,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:47,701 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2022-12-14 06:07:47,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:47,702 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-12-14 06:07:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 06:07:47,702 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:47,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:47,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:47,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:47,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:47,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:47,906 INFO L85 PathProgramCache]: Analyzing trace with hash 843294771, now seen corresponding path program 1 times [2022-12-14 06:07:47,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:47,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1427199005] [2022-12-14 06:07:47,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:47,909 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 [2022-12-14 06:07:47,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:47,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:07:47,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:48,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:07:48,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:48,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:07:48,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:07:48,064 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:07:48,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1427199005] [2022-12-14 06:07:48,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1427199005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:48,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:48,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:07:48,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364865500] [2022-12-14 06:07:48,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:48,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:07:48,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:07:48,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:07:48,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:07:48,066 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:49,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:49,358 INFO L93 Difference]: Finished difference Result 71 states and 91 transitions. [2022-12-14 06:07:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:07:49,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 06:07:49,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:49,359 INFO L225 Difference]: With dead ends: 71 [2022-12-14 06:07:49,359 INFO L226 Difference]: Without dead ends: 51 [2022-12-14 06:07:49,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:07:49,361 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:49,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 40 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 06:07:49,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-14 06:07:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2022-12-14 06:07:49,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 37 states have internal predecessors, (46), 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) [2022-12-14 06:07:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2022-12-14 06:07:49,366 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 13 [2022-12-14 06:07:49,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:49,366 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-12-14 06:07:49,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2022-12-14 06:07:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 06:07:49,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:49,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:49,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 06:07:49,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:49,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1349105153, now seen corresponding path program 1 times [2022-12-14 06:07:49,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:49,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891477816] [2022-12-14 06:07:49,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:49,573 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 [2022-12-14 06:07:49,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:49,576 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:07:49,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:49,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 06:07:49,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:07:50,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:07:50,585 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:07:50,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891477816] [2022-12-14 06:07:50,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891477816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:50,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:50,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:07:50,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591927271] [2022-12-14 06:07:50,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:50,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:07:50,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:07:50,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:07:50,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:07:50,587 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:53,760 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] [2022-12-14 06:07:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:53,926 INFO L93 Difference]: Finished difference Result 70 states and 86 transitions. [2022-12-14 06:07:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:07:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 06:07:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:53,928 INFO L225 Difference]: With dead ends: 70 [2022-12-14 06:07:53,928 INFO L226 Difference]: Without dead ends: 47 [2022-12-14 06:07:53,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:07:53,930 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:53,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 57 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 06:07:53,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-14 06:07:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 30. [2022-12-14 06:07:53,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 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) [2022-12-14 06:07:53,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-12-14 06:07:53,934 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 13 [2022-12-14 06:07:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:53,935 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-12-14 06:07:53,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-12-14 06:07:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:07:53,935 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:53,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:53,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-12-14 06:07:54,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:54,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:54,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash -151896705, now seen corresponding path program 1 times [2022-12-14 06:07:54,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:54,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663215317] [2022-12-14 06:07:54,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:54,143 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 [2022-12-14 06:07:54,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:54,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:07:54,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:54,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:07:54,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:54,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:07:54,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:07:54,242 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:07:54,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663215317] [2022-12-14 06:07:54,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663215317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:54,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:54,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:07:54,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956773411] [2022-12-14 06:07:54,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:54,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:07:54,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:07:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:07:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:07:54,244 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:54,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:54,367 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-12-14 06:07:54,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:07:54,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 06:07:54,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:54,369 INFO L225 Difference]: With dead ends: 49 [2022-12-14 06:07:54,369 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 06:07:54,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:07:54,371 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:54,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:07:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 06:07:54,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 06:07:54,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 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) [2022-12-14 06:07:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-12-14 06:07:54,375 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 24 [2022-12-14 06:07:54,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:54,375 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-12-14 06:07:54,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-12-14 06:07:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:07:54,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:54,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:54,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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)] Forceful destruction successful, exit code 0 [2022-12-14 06:07:54,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:54,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash -327957724, now seen corresponding path program 1 times [2022-12-14 06:07:54,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:54,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041279765] [2022-12-14 06:07:54,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:54,581 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 [2022-12-14 06:07:54,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:54,584 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:07:54,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (6)] Waiting until timeout for monitored process [2022-12-14 06:07:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:54,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 06:07:54,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:07:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:07:54,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:07:54,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:07:54,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041279765] [2022-12-14 06:07:54,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041279765] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:07:54,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:07:54,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:07:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18287514] [2022-12-14 06:07:54,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:07:54,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:07:54,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:07:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:07:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:07:54,749 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:07:54,858 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2022-12-14 06:07:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:07:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 06:07:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:07:54,859 INFO L225 Difference]: With dead ends: 48 [2022-12-14 06:07:54,859 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 06:07:54,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:07:54,860 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 23 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:07:54,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:07:54,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 06:07:54,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2022-12-14 06:07:54,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:54,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-12-14 06:07:54,864 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 24 [2022-12-14 06:07:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:07:54,864 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-12-14 06:07:54,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:07:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-12-14 06:07:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:07:54,865 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:07:54,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:07:54,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (6)] Ended with exit code 0 [2022-12-14 06:07:55,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:07:55,067 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:07:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:07:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash 401808482, now seen corresponding path program 1 times [2022-12-14 06:07:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:07:55,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900695952] [2022-12-14 06:07:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:07:55,070 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 [2022-12-14 06:07:55,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:07:55,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:07:55,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (7)] Waiting until timeout for monitored process [2022-12-14 06:07:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:07:55,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 06:07:55,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:08:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:08:11,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:08:11,896 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:08:11,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900695952] [2022-12-14 06:08:11,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900695952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:08:11,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:08:11,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 06:08:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422697719] [2022-12-14 06:08:11,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:08:11,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 06:08:11,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:08:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 06:08:11,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=51, Unknown=2, NotChecked=0, Total=90 [2022-12-14 06:08:11,897 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:08:13,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:15,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:22,378 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 25 DAG size of output: 14 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 06:08:35,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:37,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:40,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:41,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:44,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:46,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:48,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:50,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:52,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:54,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:56,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:08:58,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:09:00,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:09:02,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:09:03,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:09:06,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 06:09:06,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:09:06,033 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2022-12-14 06:09:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 06:09:06,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 06:09:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:09:06,081 INFO L225 Difference]: With dead ends: 75 [2022-12-14 06:09:06,081 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 06:09:06,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=61, Invalid=93, Unknown=2, NotChecked=0, Total=156 [2022-12-14 06:09:06,082 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 92 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 23 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:09:06,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 32 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 59 Invalid, 14 Unknown, 0 Unchecked, 39.1s Time] [2022-12-14 06:09:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 06:09:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2022-12-14 06:09:06,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 46 states have internal predecessors, (52), 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) [2022-12-14 06:09:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-12-14 06:09:06,092 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 24 [2022-12-14 06:09:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:09:06,092 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-12-14 06:09:06,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:09:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-12-14 06:09:06,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 06:09:06,093 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:09:06,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:09:06,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (7)] Ended with exit code 0 [2022-12-14 06:09:06,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:09:06,295 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:09:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:09:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash -60423724, now seen corresponding path program 1 times [2022-12-14 06:09:06,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:09:06,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131050668] [2022-12-14 06:09:06,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:09:06,300 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 [2022-12-14 06:09:06,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:09:06,303 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:09:06,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (8)] Waiting until timeout for monitored process [2022-12-14 06:09:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:09:07,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 06:09:07,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:09:32,980 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.neg .cse3))) (and (= |c_ULTIMATE.start_main_~main__S~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)))) (fp.mul c_currentRoundingMode .cse0 (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) |ULTIMATE.start_main_~main__E1~0#1|) .cse1)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse2) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse3) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse3))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-14 06:09:35,004 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.neg .cse3))) (and (= |c_ULTIMATE.start_main_~main__S~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)))) (fp.mul c_currentRoundingMode .cse0 (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) |ULTIMATE.start_main_~main__E1~0#1|) .cse1)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse2) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse3) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse3))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2022-12-14 06:10:19,816 WARN L837 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.neg .cse1))) (and (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse1) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)))) (fp.mul roundNearestTiesToEven .cse2 (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 .cse3) |ULTIMATE.start_main_~main__E1~0#1|) .cse3)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)))) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1))))) is different from false [2022-12-14 06:10:21,844 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.neg .cse1))) (and (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse1) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)))) (fp.mul roundNearestTiesToEven .cse2 (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 .cse3) |ULTIMATE.start_main_~main__E1~0#1|) .cse3)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)))) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1))))) is different from true [2022-12-14 06:11:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:11:30,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:11:30,253 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:11:30,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131050668] [2022-12-14 06:11:30,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131050668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:11:30,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:11:30,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 06:11:30,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745562475] [2022-12-14 06:11:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:11:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:11:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:11:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:11:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=54, Unknown=4, NotChecked=34, Total=132 [2022-12-14 06:11:30,254 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:11:35,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:11:36,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:11:36,098 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2022-12-14 06:11:36,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 06:11:36,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 06:11:36,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:11:36,099 INFO L225 Difference]: With dead ends: 71 [2022-12-14 06:11:36,099 INFO L226 Difference]: Without dead ends: 69 [2022-12-14 06:11:36,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=47, Invalid=67, Unknown=4, NotChecked=38, Total=156 [2022-12-14 06:11:36,100 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 06:11:36,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 65 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 1 Unknown, 94 Unchecked, 5.7s Time] [2022-12-14 06:11:36,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-14 06:11:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2022-12-14 06:11:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 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) [2022-12-14 06:11:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-12-14 06:11:36,106 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 24 [2022-12-14 06:11:36,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:11:36,106 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-12-14 06:11:36,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:11:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-12-14 06:11:36,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 06:11:36,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:11:36,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:11:36,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (8)] Ended with exit code 0 [2022-12-14 06:11:36,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:11:36,309 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:11:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:11:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1904984945, now seen corresponding path program 1 times [2022-12-14 06:11:36,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:11:36,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956910148] [2022-12-14 06:11:36,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:11:36,312 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 [2022-12-14 06:11:36,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:11:36,315 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:11:36,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (9)] Waiting until timeout for monitored process [2022-12-14 06:11:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:11:37,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2022-12-14 06:11:37,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:12:03,014 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.neg .cse3))) (and (= |c_ULTIMATE.start_main_~main__S~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)))) (fp.mul c_currentRoundingMode .cse0 (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) |ULTIMATE.start_main_~main__E1~0#1|) .cse1)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse2) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse3) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse3))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-14 06:12:46,126 WARN L837 $PredicateComparison]: unable to prove that (and (fp.geq |c_ULTIMATE.start_main_~main__S~0#1| (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse2 (fp.neg .cse3))) (and (= |c_ULTIMATE.start_main_~main__S~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)))) (fp.mul c_currentRoundingMode .cse0 (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) |ULTIMATE.start_main_~main__E1~0#1|) .cse1)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse2) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse3) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse3))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-14 06:13:15,222 WARN L837 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.neg .cse3)) (.cse1 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)))) (fp.mul roundNearestTiesToEven .cse4 (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse5) |ULTIMATE.start_main_~main__E1~0#1|) .cse5)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0) (fp.geq .cse1 (fp.neg .cse2)) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse0) (not (fp.leq .cse1 .cse2)) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse3))))) is different from false [2022-12-14 06:13:17,251 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.neg .cse3)) (.cse1 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)))) (fp.mul roundNearestTiesToEven .cse4 (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse5) |ULTIMATE.start_main_~main__E1~0#1|) .cse5)))) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0))) (and (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0) (fp.geq .cse1 (fp.neg .cse2)) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse0) (not (fp.leq .cse1 .cse2)) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse3))))) is different from true [2022-12-14 06:14:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:14:38,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:14:38,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:14:38,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956910148] [2022-12-14 06:14:38,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956910148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:14:38,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:14:38,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 06:14:38,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850992002] [2022-12-14 06:14:38,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:14:38,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 06:14:38,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:14:38,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 06:14:38,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=56, Unknown=4, NotChecked=54, Total=156 [2022-12-14 06:14:38,516 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2022-12-14 06:14:39,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:14:44,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:14:47,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 06:14:47,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:14:47,663 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-12-14 06:14:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 06:14:47,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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 25 [2022-12-14 06:14:47,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:14:47,665 INFO L225 Difference]: With dead ends: 73 [2022-12-14 06:14:47,665 INFO L226 Difference]: Without dead ends: 71 [2022-12-14 06:14:47,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=49, Invalid=69, Unknown=4, NotChecked=60, Total=182 [2022-12-14 06:14:47,666 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 141 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:14:47,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 78 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 2 Unknown, 141 Unchecked, 9.0s Time] [2022-12-14 06:14:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-12-14 06:14:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 57. [2022-12-14 06:14:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 56 states have internal predecessors, (65), 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) [2022-12-14 06:14:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2022-12-14 06:14:47,673 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 25 [2022-12-14 06:14:47,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:14:47,674 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2022-12-14 06:14:47,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2022-12-14 06:14:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2022-12-14 06:14:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 06:14:47,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:14:47,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:14:47,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (9)] Forceful destruction successful, exit code 0 [2022-12-14 06:14:47,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:14:47,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:14:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:14:47,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1204213622, now seen corresponding path program 1 times [2022-12-14 06:14:47,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:14:47,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256658334] [2022-12-14 06:14:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:14:47,876 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 [2022-12-14 06:14:47,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:14:47,878 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:14:47,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63b9dc57-8fed-4e2f-945c-9f72ef77bd18/bin/utaipan-gh47qXpMRh/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 (10)] Waiting until timeout for monitored process [2022-12-14 06:14:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:14:49,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 06:14:49,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:15:21,539 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~main__S~0#1_24| (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.neg .cse2)) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (and (fp.leq |v_ULTIMATE.start_main_~main__S~0#1_24| .cse0) (= |c_ULTIMATE.start_main_~main__S~0#1| (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |v_ULTIMATE.start_main_~main__S~0#1_24|) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|)) (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse1) (fp.geq |v_ULTIMATE.start_main_~main__S~0#1_24| (fp.neg .cse0)) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse2))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-12-14 06:16:23,459 WARN L837 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~main__S~0#1_24| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.neg .cse1)) (.cse2 (fp.neg .cse3))) (and (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse1) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) |v_ULTIMATE.start_main_~main__S~0#1_24|) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|) .cse2)) (fp.leq |v_ULTIMATE.start_main_~main__S~0#1_24| .cse3) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse0) (fp.geq |v_ULTIMATE.start_main_~main__S~0#1_24| .cse2) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1))))) is different from false [2022-12-14 06:16:25,486 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~main__E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~main__S~0#1_24| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 10000.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse0 (fp.neg .cse1)) (.cse2 (fp.neg .cse3))) (and (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~main__E1~0#1| .cse1) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 999.0 1000.0)) |v_ULTIMATE.start_main_~main__S~0#1_24|) |ULTIMATE.start_main_~main__E0~0#1|) |ULTIMATE.start_main_~main__E1~0#1|) .cse2)) (fp.leq |v_ULTIMATE.start_main_~main__S~0#1_24| .cse3) (fp.geq |ULTIMATE.start_main_~main__E1~0#1| .cse0) (fp.geq |v_ULTIMATE.start_main_~main__S~0#1_24| .cse2) (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1))))) is different from true [2022-12-14 06:17:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-12-14 06:17:57,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:18:03,302 WARN L837 $PredicateComparison]: unable to prove that (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |c_ULTIMATE.start_main_~main__S~0#1|) |c_ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) is different from false [2022-12-14 06:18:05,358 WARN L859 $PredicateComparison]: unable to prove that (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |c_ULTIMATE.start_main_~main__S~0#1|) |c_ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) is different from true [2022-12-14 06:18:19,843 WARN L837 $PredicateComparison]: unable to prove that (or (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |c_ULTIMATE.start_main_~main__S~0#1|) |c_ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (not (fp.leq |c_ULTIMATE.start_main_~main__E0~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)))) is different from false [2022-12-14 06:18:21,898 WARN L859 $PredicateComparison]: unable to prove that (or (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |c_ULTIMATE.start_main_~main__S~0#1|) |c_ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (not (fp.leq |c_ULTIMATE.start_main_~main__E0~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)))) is different from true [2022-12-14 06:18:36,489 WARN L859 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (or (not (fp.geq |ULTIMATE.start_main_~main__E0~0#1| (fp.neg .cse0))) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |c_ULTIMATE.start_main_~main__S~0#1|) |ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (not (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse0))))) is different from true [2022-12-14 06:19:41,356 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (or (forall ((|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (or (not (fp.geq |ULTIMATE.start_main_~main__E0~0#1| (fp.neg .cse0))) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |c_ULTIMATE.start_main_~main__S~0#1|) |ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) (fp.neg .cse1)) (not (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse0))))) (not (fp.leq |c_ULTIMATE.start_main_~main__S~0#1| .cse1)))) is different from true [2022-12-14 06:19:55,930 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse2 (fp.neg .cse0))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse0)) (forall ((|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (or (not (fp.geq |ULTIMATE.start_main_~main__E0~0#1| (fp.neg .cse1))) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) .cse2) (not (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1))))) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse2)))))) is different from false [2022-12-14 06:19:57,991 WARN L859 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse2 (fp.neg .cse0))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse0)) (forall ((|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (or (not (fp.geq |ULTIMATE.start_main_~main__E0~0#1| (fp.neg .cse1))) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |ULTIMATE.start_main_~main__E0~0#1|) |c_ULTIMATE.start_main_~main__E1~0#1|) .cse2) (not (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1))))) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse2)))))) is different from true [2022-12-14 06:20:20,982 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~main__E0~0#1_18| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse2 (fp.neg .cse0))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse0)) (not (fp.geq |v_ULTIMATE.start_main_~main__E0~0#1_18| (fp.neg .cse1))) (not (fp.leq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse1)) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse2)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |v_ULTIMATE.start_main_~main__E0~0#1_18|) |c_ULTIMATE.start_main_~main__E0~0#1|) .cse2))))) is different from false [2022-12-14 06:20:23,038 WARN L859 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~main__E0~0#1_18| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse2 (fp.neg .cse0))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse0)) (not (fp.geq |v_ULTIMATE.start_main_~main__E0~0#1_18| (fp.neg .cse1))) (not (fp.leq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse1)) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse2)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |v_ULTIMATE.start_main_~main__E0~0#1_18|) |c_ULTIMATE.start_main_~main__E0~0#1|) .cse2))))) is different from true [2022-12-14 06:21:28,062 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (or (forall ((|v_ULTIMATE.start_main_~main__E0~0#1_18| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse2 (fp.neg .cse0))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse0)) (not (fp.geq |v_ULTIMATE.start_main_~main__E0~0#1_18| (fp.neg .cse1))) (not (fp.leq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse1)) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse2)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |v_ULTIMATE.start_main_~main__E0~0#1_18|) |c_ULTIMATE.start_main_~main__E0~0#1|) .cse2))))) (not (fp.leq |c_ULTIMATE.start_main_~main__E0~0#1| .cse1)))) is different from true [2022-12-14 06:21:51,144 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.neg .cse1))) (or (not (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0)) (not (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1)) (forall ((|v_ULTIMATE.start_main_~main__E0~0#1_18| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse3 (fp.neg .cse2))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse2)) (not (fp.geq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse0)) (not (fp.leq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse1)) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse3)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |v_ULTIMATE.start_main_~main__E0~0#1_18|) |ULTIMATE.start_main_~main__E0~0#1|) .cse3))))))))) is different from false [2022-12-14 06:21:53,202 WARN L859 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__E0~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.neg .cse1))) (or (not (fp.geq |ULTIMATE.start_main_~main__E0~0#1| .cse0)) (not (fp.leq |ULTIMATE.start_main_~main__E0~0#1| .cse1)) (forall ((|v_ULTIMATE.start_main_~main__E0~0#1_18| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~main__S~0#1| (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 10000.0))) (let ((.cse3 (fp.neg .cse2))) (or (not (fp.leq |ULTIMATE.start_main_~main__S~0#1| .cse2)) (not (fp.geq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse0)) (not (fp.leq |v_ULTIMATE.start_main_~main__E0~0#1_18| .cse1)) (not (fp.geq |ULTIMATE.start_main_~main__S~0#1| .cse3)) (fp.geq (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 999.0 1000.0)) |ULTIMATE.start_main_~main__S~0#1|) |v_ULTIMATE.start_main_~main__E0~0#1_18|) |ULTIMATE.start_main_~main__E0~0#1|) .cse3))))))))) is different from true