./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs --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 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:05,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:05,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:05,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:05,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:05,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:05,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:05,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:05,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:05,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:05,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:05,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:05,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:05,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:05,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:05,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:05,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:05,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:05,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:05,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:05,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:05,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:05,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:05,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:05,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:05,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:05,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:05,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:05,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:05,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:05,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:05,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:05,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:05,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:05,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:05,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:05,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:05,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:05,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:05,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:05,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:05,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:00:05,904 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:05,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:05,905 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:05,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:05,906 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:05,906 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:05,906 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:05,907 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:00:05,907 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:05,907 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:05,908 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:00:05,908 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:00:05,908 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:05,908 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:00:05,909 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:00:05,909 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:00:05,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:05,913 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:00:05,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:00:05,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:00:05,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:05,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:05,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:05,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:05,915 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:05,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:00:05,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:05,916 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:05,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:05,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:05,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:05,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:05,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:05,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:05,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:05,921 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:00:05,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 [2021-11-19 14:00:06,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:06,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:06,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:06,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:06,300 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:06,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-19 14:00:06,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/9d4ae0176/7400413022184fff8b3f586bfd8cebe2/FLAGf36f3b5d8 [2021-11-19 14:00:06,937 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:06,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-19 14:00:06,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/9d4ae0176/7400413022184fff8b3f586bfd8cebe2/FLAGf36f3b5d8 [2021-11-19 14:00:07,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/9d4ae0176/7400413022184fff8b3f586bfd8cebe2 [2021-11-19 14:00:07,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:07,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:07,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:07,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:07,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:07,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a90ecfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07, skipping insertion in model container [2021-11-19 14:00:07,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:07,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:07,529 WARN L230 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_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-19 14:00:07,576 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:07,627 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:00:07,640 WARN L230 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_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-19 14:00:07,660 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:07,760 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:00:07,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07 WrapperNode [2021-11-19 14:00:07,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:07,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:00:07,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:00:07,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:00:07,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,868 INFO L137 Inliner]: procedures = 22, calls = 382, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 404 [2021-11-19 14:00:07,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:00:07,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:00:07,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:00:07,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:00:07,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:00:07,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:00:07,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:00:07,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:00:07,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:07,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:00:08,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:00:08,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:00:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:00:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-11-19 14:00:08,067 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-11-19 14:00:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:00:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-11-19 14:00:08,067 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-11-19 14:00:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-11-19 14:00:08,068 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-11-19 14:00:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:00:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 14:00:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure SIN [2021-11-19 14:00:08,069 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN [2021-11-19 14:00:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:00:08,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:00:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-19 14:00:08,179 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:00:08,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:00:08,702 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:00:08,743 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:00:08,744 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:00:08,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:08 BoogieIcfgContainer [2021-11-19 14:00:08,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:00:08,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:00:08,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:00:08,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:00:08,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:00:07" (1/3) ... [2021-11-19 14:00:08,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcb39ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:08, skipping insertion in model container [2021-11-19 14:00:08,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07" (2/3) ... [2021-11-19 14:00:08,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcb39ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:08, skipping insertion in model container [2021-11-19 14:00:08,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:08" (3/3) ... [2021-11-19 14:00:08,764 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_negation.c [2021-11-19 14:00:08,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:00:08,773 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:00:08,828 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:00:08,836 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:00:08,836 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:00:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 23 states have internal predecessors, (28), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 14:00:08,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-19 14:00:08,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:08,865 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2021-11-19 14:00:08,866 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:08,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:08,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1810588642, now seen corresponding path program 1 times [2021-11-19 14:00:08,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:00:08,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347794705] [2021-11-19 14:00:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:08,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:00:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:00:09,263 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:00:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:00:09,524 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:00:09,528 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:00:09,529 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:00:09,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:00:09,537 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 14:00:09,540 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:00:09,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:00:09 BoogieIcfgContainer [2021-11-19 14:00:09,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:00:09,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:00:09,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:00:09,627 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:00:09,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:08" (3/4) ... [2021-11-19 14:00:09,630 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:00:09,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:00:09,633 INFO L158 Benchmark]: Toolchain (without parser) took 2334.68ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 67.3MB in the beginning and 76.4MB in the end (delta: -9.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-11-19 14:00:09,633 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:09,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.91ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 63.8MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:00:09,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.08ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 59.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:00:09,637 INFO L158 Benchmark]: Boogie Preprocessor took 99.53ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 55.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:00:09,643 INFO L158 Benchmark]: RCFGBuilder took 775.69ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 55.5MB in the beginning and 82.8MB in the end (delta: -27.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-11-19 14:00:09,645 INFO L158 Benchmark]: TraceAbstraction took 874.40ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 76.4MB in the end (delta: 5.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-19 14:00:09,645 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 121.6MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:09,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.91ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 63.8MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.08ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 59.3MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.53ms. Allocated memory is still 98.6MB. Free memory was 59.3MB in the beginning and 55.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 775.69ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 55.5MB in the beginning and 82.8MB in the end (delta: -27.3MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 874.40ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 76.4MB in the end (delta: 5.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 121.6MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 121, overapproximation of someUnaryDOUBLEoperation at line 130, overapproximation of someBinaryArithmeticDOUBLEoperation at line 154, overapproximation of someBinaryDOUBLEComparisonOperation at line 156, overapproximation of to_real at line 122. Possible FailurePath: [L20-L112] const double T[362] = { 0.00000000000000, 0.01745240643728, 0.03489949670250, 0.05233595624294, 0.06975647374413, 0.08715574274766, 0.10452846326765, 0.12186934340515, 0.13917310096007, 0.15643446504023, 0.17364817766693, 0.19080899537654, 0.20791169081776, 0.22495105434386, 0.24192189559967, 0.25881904510252, 0.27563735581700, 0.29237170472274, 0.30901699437495, 0.32556815445716, 0.34202014332567, 0.35836794954530, 0.37460659341591, 0.39073112848927, 0.40673664307580, 0.42261826174070, 0.43837114678908, 0.45399049973955, 0.46947156278589, 0.48480962024634, 0.50000000000000, 0.51503807491005, 0.52991926423320, 0.54463903501503, 0.55919290347075, 0.57357643635105, 0.58778525229247, 0.60181502315205, 0.61566147532566, 0.62932039104984, 0.64278760968654, 0.65605902899051, 0.66913060635886, 0.68199836006250, 0.69465837045900, 0.70710678118655, 0.71933980033865, 0.73135370161917, 0.74314482547739, 0.75470958022277, 0.76604444311898, 0.77714596145697, 0.78801075360672, 0.79863551004729, 0.80901699437495, 0.81915204428899, 0.82903757255504, 0.83867056794542, 0.84804809615643, 0.85716730070211, 0.86602540378444, 0.87461970713940, 0.88294759285893, 0.89100652418837, 0.89879404629917, 0.90630778703665, 0.91354545764260, 0.92050485345244, 0.92718385456679, 0.93358042649720, 0.93969262078591, 0.94551857559932, 0.95105651629515, 0.95630475596304, 0.96126169593832, 0.96592582628907, 0.97029572627600, 0.97437006478524, 0.97814760073381, 0.98162718344766, 0.98480775301221, 0.98768834059514, 0.99026806874157, 0.99254615164132, 0.99452189536827, 0.99619469809175, 0.99756405025982, 0.99862953475457, 0.99939082701910, 0.99984769515639, 1.00000000000000, 0.99984769515639, 0.99939082701910, 0.99862953475457, 0.99756405025982, 0.99619469809175, 0.99452189536827, 0.99254615164132, 0.99026806874157, 0.98768834059514, 0.98480775301221, 0.98162718344766, 0.97814760073381, 0.97437006478524, 0.97029572627600, 0.96592582628907, 0.96126169593832, 0.95630475596304, 0.95105651629515, 0.94551857559932, 0.93969262078591, 0.93358042649720, 0.92718385456679, 0.92050485345244, 0.91354545764260, 0.90630778703665, 0.89879404629917, 0.89100652418837, 0.88294759285893, 0.87461970713940, 0.86602540378444, 0.85716730070211, 0.84804809615643, 0.83867056794542, 0.82903757255504, 0.81915204428899, 0.80901699437495, 0.79863551004729, 0.78801075360672, 0.77714596145697, 0.76604444311898, 0.75470958022277, 0.74314482547739, 0.73135370161917, 0.71933980033865, 0.70710678118655, 0.69465837045900, 0.68199836006250, 0.66913060635886, 0.65605902899051, 0.64278760968654, 0.62932039104984, 0.61566147532566, 0.60181502315205, 0.58778525229247, 0.57357643635105, 0.55919290347075, 0.54463903501503, 0.52991926423320, 0.51503807491005, 0.50000000000000, 0.48480962024634, 0.46947156278589, 0.45399049973955, 0.43837114678908, 0.42261826174070, 0.40673664307580, 0.39073112848927, 0.37460659341591, 0.35836794954530, 0.34202014332567, 0.32556815445716, 0.30901699437495, 0.29237170472274, 0.27563735581700, 0.25881904510252, 0.24192189559967, 0.22495105434387, 0.20791169081776, 0.19080899537654, 0.17364817766693, 0.15643446504023, 0.13917310096007, 0.12186934340515, 0.10452846326765, 0.08715574274766, 0.06975647374413, 0.05233595624294, 0.03489949670250, 0.01745240643728, 0.00000000000000, -0.01745240643728, -0.03489949670250, -0.05233595624294, -0.06975647374412, -0.08715574274766, -0.10452846326765, -0.12186934340515, -0.13917310096007, -0.15643446504023, -0.17364817766693, -0.19080899537654, -0.20791169081776, -0.22495105434386, -0.24192189559967, -0.25881904510252, -0.27563735581700, -0.29237170472274, -0.30901699437495, -0.32556815445716, -0.34202014332567, -0.35836794954530, -0.37460659341591, -0.39073112848927, -0.40673664307580, -0.42261826174070, -0.43837114678908, -0.45399049973955, -0.46947156278589, -0.48480962024634, -0.50000000000000, -0.51503807491005, -0.52991926423320, -0.54463903501503, -0.55919290347075, -0.57357643635105, -0.58778525229247, -0.60181502315205, -0.61566147532566, -0.62932039104984, -0.64278760968654, -0.65605902899051, -0.66913060635886, -0.68199836006250, -0.69465837045900, -0.70710678118655, -0.71933980033865, -0.73135370161917, -0.74314482547739, -0.75470958022277, -0.76604444311898, -0.77714596145697, -0.78801075360672, -0.79863551004729, -0.80901699437495, -0.81915204428899, -0.82903757255504, -0.83867056794542, -0.84804809615643, -0.85716730070211, -0.86602540378444, -0.87461970713940, -0.88294759285893, -0.89100652418837, -0.89879404629917, -0.90630778703665, -0.91354545764260, -0.92050485345244, -0.92718385456679, -0.93358042649720, -0.93969262078591, -0.94551857559932, -0.95105651629515, -0.95630475596304, -0.96126169593832, -0.96592582628907, -0.97029572627600, -0.97437006478524, -0.97814760073381, -0.98162718344766, -0.98480775301221, -0.98768834059514, -0.99026806874157, -0.99254615164132, -0.99452189536827, -0.99619469809175, -0.99756405025982, -0.99862953475457, -0.99939082701910, -0.99984769515639, -1.00000000000000, -0.99984769515639, -0.99939082701910, -0.99862953475457, -0.99756405025982, -0.99619469809175, -0.99452189536827, -0.99254615164132, -0.99026806874157, -0.98768834059514, -0.98480775301221, -0.98162718344766, -0.97814760073381, -0.97437006478524, -0.97029572627600, -0.96592582628907, -0.96126169593832, -0.95630475596304, -0.95105651629515, -0.94551857559932, -0.93969262078591, -0.93358042649720, -0.92718385456679, -0.92050485345244, -0.91354545764260, -0.90630778703665, -0.89879404629917, -0.89100652418837, -0.88294759285893, -0.87461970713940, -0.86602540378444, -0.85716730070211, -0.84804809615643, -0.83867056794542, -0.82903757255504, -0.81915204428899, -0.80901699437495, -0.79863551004729, -0.78801075360672, -0.77714596145697, -0.76604444311898, -0.75470958022277, -0.74314482547739, -0.73135370161917, -0.71933980033865, -0.70710678118655, -0.69465837045900, -0.68199836006250, -0.66913060635886, -0.65605902899051, -0.64278760968654, -0.62932039104984, -0.61566147532566, -0.60181502315205, -0.58778525229247, -0.57357643635105, -0.55919290347075, -0.54463903501503, -0.52991926423321, -0.51503807491005, -0.50000000000000, -0.48480962024634, -0.46947156278589, -0.45399049973955, -0.43837114678908, -0.42261826174070, -0.40673664307580, -0.39073112848927, -0.37460659341591, -0.35836794954530, -0.34202014332567, -0.32556815445716, -0.30901699437495, -0.29237170472274, -0.27563735581700, -0.25881904510252, -0.24192189559967, -0.22495105434387, -0.20791169081776, -0.19080899537654, -0.17364817766693, -0.15643446504023, -0.13917310096007, -0.12186934340515, -0.10452846326765, -0.08715574274766, -0.06975647374413, -0.05233595624294, -0.03489949670250, -0.01745240643728, 0, 0 }; [L148] double a, aa, r; [L150] a = -360 VAL [T={4:0}] [L150] COND TRUE a <= 360 [L151] aa = __VERIFIER_nondet_double() [L152] CALL assume_abort_if_not(aa >= a / 2. && aa <= (a+1.) / 2.) [L15] COND FALSE !(!cond) [L152] RET assume_abort_if_not(aa >= a / 2. && aa <= (a+1.) / 2.) [L154] CALL, EXPR SIN(aa) VAL [\old(x)=2907, T={4:0}] [L142] COND TRUE x<0 VAL [\old(x)=2907, T={4:0}, x=2907] [L142] CALL, EXPR SIN_POS(-x) VAL [T={4:0}] [L136] COND FALSE !(x>180) VAL [\old(x)=2897, T={4:0}, x=2897] [L137] CALL, EXPR SIN_180(x) VAL [\old(x)=2897, T={4:0}] [L130] COND TRUE x<0 VAL [\old(x)=2897, T={4:0}, x=2897] [L130] CALL, EXPR SIN_0_180(-x) VAL [T={4:0}] [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); [L130] RET, EXPR SIN_0_180(-x) VAL [\old(x)=2897, SIN_0_180(-x)=2909, T={4:0}, x=2897] [L130] return -SIN_0_180(-x); [L137] RET, EXPR SIN_180(x) VAL [\old(x)=2897, SIN_180(x)=2901, T={4:0}, x=2897] [L137] return SIN_180(x); [L142] RET, EXPR SIN_POS(-x) VAL [\old(x)=2907, SIN_POS(-x)=2901, T={4:0}, x=2907] [L142] return -SIN_POS(-x); [L154] RET, EXPR SIN(aa) VAL [a=2907, SIN(aa)=2902, T={4:0}] [L154] CALL, EXPR SIN(-aa) VAL [T={4:0}] [L142] COND FALSE !(x<0) VAL [\old(x)=2910, T={4:0}, x=2910] [L143] CALL, EXPR SIN_POS(x) VAL [\old(x)=2910, T={4:0}] [L136] COND FALSE !(x>180) VAL [\old(x)=2910, T={4:0}, x=2910] [L137] CALL, EXPR SIN_180(x) VAL [\old(x)=2910, T={4:0}] [L130] COND TRUE x<0 VAL [\old(x)=2910, T={4:0}, x=2910] [L130] CALL, EXPR SIN_0_180(-x) VAL [T={4:0}] [L117] double dx, i_dx, v_inf; [L118] double v_sup; [L119] int i; [L120] dx = 2*x [L121] i = dx [L122] i_dx = i [L123] EXPR T[i] [L123] v_inf = T[i] [L124] EXPR T[i+1] [L124] v_sup = T[i+1] [L125] return v_inf + (dx - i_dx) * (v_sup - v_inf); [L130] RET, EXPR SIN_0_180(-x) VAL [\old(x)=2910, SIN_0_180(-x)=2906, T={4:0}, x=2910] [L130] return -SIN_0_180(-x); [L137] RET, EXPR SIN_180(x) VAL [\old(x)=2910, SIN_180(x)=2904, T={4:0}, x=2910] [L137] return SIN_180(x); [L143] RET, EXPR SIN_POS(x) VAL [\old(x)=2910, SIN_POS(x)=2904, T={4:0}, x=2910] [L143] return SIN_POS(x); [L154] RET, EXPR SIN(-aa) VAL [a=2907, SIN(-aa)=2904, SIN(aa)=2902, T={4:0}] [L154] r = SIN(aa) + SIN(-aa) [L156] CALL __VERIFIER_assert(r >= -0.06 && r <= 0.06) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, T={4:0}] [L17] reach_error() VAL [\old(cond)=0, cond=0, T={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 14:00:09,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs --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 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:12,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:12,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:12,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:12,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:12,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:12,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:12,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:12,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:12,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:12,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:12,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:12,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:12,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:12,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:12,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:12,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:12,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:12,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:12,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:12,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:12,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:12,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:12,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:12,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:12,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:12,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:12,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:12,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:12,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:12,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:12,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:12,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:12,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:12,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:12,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:12,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:12,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:12,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:12,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:12,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:12,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:00:12,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:12,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:12,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:12,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:12,257 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:12,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:12,258 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:12,258 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:12,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:12,259 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:12,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:12,260 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:00:12,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:00:12,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:12,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:12,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:12,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:12,261 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:12,262 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:00:12,262 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:00:12,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:00:12,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:12,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:12,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:12,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:12,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:00:12,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:12,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:12,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:12,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:12,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:12,264 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:00:12,265 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:12,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:12,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:12,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:12,265 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_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc903c4e042f1a917ff23806dc398a0ae6250449674c68af7855fc8b73da478 [2021-11-19 14:00:12,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:12,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:12,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:12,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:12,699 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:12,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-19 14:00:12,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/ede4507ac/4fa0d01c7e9044c5b6f3622b19c288c4/FLAG0f380d64f [2021-11-19 14:00:13,348 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:13,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c [2021-11-19 14:00:13,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/ede4507ac/4fa0d01c7e9044c5b6f3622b19c288c4/FLAG0f380d64f [2021-11-19 14:00:13,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/data/ede4507ac/4fa0d01c7e9044c5b6f3622b19c288c4 [2021-11-19 14:00:13,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:13,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:13,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:13,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:13,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:13,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:13" (1/1) ... [2021-11-19 14:00:13,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256a2953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:13, skipping insertion in model container [2021-11-19 14:00:13,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:13" (1/1) ... [2021-11-19 14:00:13,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:13,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:13,866 WARN L230 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_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-19 14:00:13,994 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:14,109 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:00:14,129 WARN L230 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_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/sv-benchmarks/c/float-benchs/sin_interpolated_negation.c[684,697] [2021-11-19 14:00:14,192 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:14,299 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:00:14,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14 WrapperNode [2021-11-19 14:00:14,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:14,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:00:14,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:00:14,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:00:14,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,426 INFO L137 Inliner]: procedures = 23, calls = 382, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 405 [2021-11-19 14:00:14,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:00:14,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:00:14,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:00:14,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:00:14,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:00:14,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:00:14,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:00:14,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:00:14,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (1/1) ... [2021-11-19 14:00:14,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:14,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:00:14,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:00:14,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:00:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:00:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-19 14:00:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_POS [2021-11-19 14:00:14,611 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_POS [2021-11-19 14:00:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:00:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_0_180 [2021-11-19 14:00:14,613 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_0_180 [2021-11-19 14:00:14,613 INFO L130 BoogieDeclarations]: Found specification of procedure SIN_180 [2021-11-19 14:00:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN_180 [2021-11-19 14:00:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:00:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-19 14:00:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure SIN [2021-11-19 14:00:14,614 INFO L138 BoogieDeclarations]: Found implementation of procedure SIN [2021-11-19 14:00:14,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:00:14,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:00:14,739 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:00:14,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:00:20,554 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:00:20,560 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:00:20,561 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:00:20,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:20 BoogieIcfgContainer [2021-11-19 14:00:20,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:00:20,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:00:20,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:00:20,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:00:20,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:00:13" (1/3) ... [2021-11-19 14:00:20,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e3c35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:20, skipping insertion in model container [2021-11-19 14:00:20,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:14" (2/3) ... [2021-11-19 14:00:20,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e3c35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:00:20, skipping insertion in model container [2021-11-19 14:00:20,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:00:20" (3/3) ... [2021-11-19 14:00:20,570 INFO L111 eAbstractionObserver]: Analyzing ICFG sin_interpolated_negation.c [2021-11-19 14:00:20,575 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:00:20,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:00:20,623 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:00:20,630 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:00:20,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:00:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 14:00:20,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:00:20,655 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:20,655 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-11-19 14:00:20,656 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:20,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:20,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1228543863, now seen corresponding path program 1 times [2021-11-19 14:00:20,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:20,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703208382] [2021-11-19 14:00:20,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:20,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:20,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:20,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:20,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:00:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:24,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:00:24,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:00:24,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:00:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 14:00:24,989 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:00:24,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703208382] [2021-11-19 14:00:24,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703208382] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:00:24,990 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:00:24,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:00:24,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622498181] [2021-11-19 14:00:24,992 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:00:24,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:00:24,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:00:25,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:00:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:00:25,028 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:00:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:00:25,051 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2021-11-19 14:00:25,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:00:25,053 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 52 [2021-11-19 14:00:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:00:25,061 INFO L225 Difference]: With dead ends: 86 [2021-11-19 14:00:25,061 INFO L226 Difference]: Without dead ends: 40 [2021-11-19 14:00:25,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:00:25,068 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:00:25,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:00:25,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-19 14:00:25,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-19 14:00:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 14:00:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2021-11-19 14:00:25,120 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 52 [2021-11-19 14:00:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:00:25,121 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2021-11-19 14:00:25,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:00:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2021-11-19 14:00:25,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:00:25,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:00:25,125 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:00:25,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:00:25,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:00:25,326 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:00:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:00:25,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1021623079, now seen corresponding path program 1 times [2021-11-19 14:00:25,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:00:25,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071038636] [2021-11-19 14:00:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:00:25,333 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:00:25,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:00:25,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:00:25,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:00:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:00:28,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:00:28,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:00:44,251 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (or (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (not (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (not (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))))) is different from false [2021-11-19 14:00:54,627 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from false [2021-11-19 14:00:56,663 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from true [2021-11-19 14:01:15,308 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from false [2021-11-19 14:01:50,092 WARN L227 SmtUtils]: Spent 10.33s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 14:02:08,763 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-11-19 14:02:10,804 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-11-19 14:02:28,312 WARN L838 $PredicateComparison]: unable to prove that (and (= c_SIN_~x |c_SIN_#in~x|) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2021-11-19 14:03:07,209 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2021-11-19 14:03:09,257 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2021-11-19 14:03:32,162 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_SIN_POS_#in~x| c_SIN_POS_~x) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from false [2021-11-19 14:04:32,402 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (= |c_SIN_180_#in~x| c_SIN_180_~x)) is different from false [2021-11-19 14:04:55,353 WARN L838 $PredicateComparison]: unable to prove that (and (fp.lt |c_SIN_180_#in~x| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from false [2021-11-19 14:05:17,757 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_SIN_180_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (fp.lt |v_SIN_180_#in~x_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from false [2021-11-19 14:05:19,808 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_SIN_180_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (fp.lt |v_SIN_180_#in~x_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from true [2021-11-19 14:06:23,736 WARN L838 $PredicateComparison]: unable to prove that (and (fp.lt |c_SIN_180_#in~x| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (exists ((|v_SIN_180_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (fp.lt |v_SIN_180_#in~x_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from false [2021-11-19 14:07:28,214 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_SIN_180_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (fp.lt |v_SIN_180_#in~x_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.lt |c_SIN_POS_#in~x| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from false [2021-11-19 14:08:49,866 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_SIN_180_#in~x_BEFORE_CALL_2| (_ FloatingPoint 11 53))) (fp.lt |v_SIN_180_#in~x_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_3| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_3| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_3| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (exists ((|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~a~0#1_8| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_8| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse1)) (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| (fp.div c_currentRoundingMode |v_ULTIMATE.start_main_~a~0#1_8| .cse1)) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_2| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (fp.lt |c_SIN_#in~x| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from false [2021-11-19 14:10:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2021-11-19 14:10:11,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:10:32,195 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 14:10:32,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:10:32,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071038636] [2021-11-19 14:10:32,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071038636] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:10:32,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:10:32,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [21] total 28 [2021-11-19 14:10:32,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954363323] [2021-11-19 14:10:32,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:10:32,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:10:32,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:10:32,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:10:32,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=192, Unknown=27, NotChecked=468, Total=756 [2021-11-19 14:10:32,205 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 11 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 14:10:33,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:36,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:38,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:40,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:43,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:45,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:47,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:50,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:54,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:10:54,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:10:54,124 INFO L93 Difference]: Finished difference Result 96 states and 116 transitions. [2021-11-19 14:10:54,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:10:54,180 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 52 [2021-11-19 14:10:54,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:10:54,183 INFO L225 Difference]: With dead ends: 96 [2021-11-19 14:10:54,184 INFO L226 Difference]: Without dead ends: 58 [2021-11-19 14:10:54,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 12 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 77.3s TimeCoverageRelationStatistics Valid=69, Invalid=192, Unknown=27, NotChecked=468, Total=756 [2021-11-19 14:10:54,187 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 18 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:10:54,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 209 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 8 Unknown, 37 Unchecked, 21.9s Time] [2021-11-19 14:10:54,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-19 14:10:54,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2021-11-19 14:10:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 32 states have (on average 1.125) internal successors, (36), 33 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (15), 11 states have call predecessors, (15), 9 states have call successors, (15) [2021-11-19 14:10:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2021-11-19 14:10:54,205 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 52 [2021-11-19 14:10:54,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:10:54,206 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2021-11-19 14:10:54,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 14:10:54,207 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2021-11-19 14:10:54,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:10:54,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:10:54,210 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-11-19 14:10:54,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:10:54,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:10:54,411 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:10:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:10:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash -880750855, now seen corresponding path program 1 times [2021-11-19 14:10:54,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:10:54,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445782418] [2021-11-19 14:10:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:10:54,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:10:54,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:10:54,418 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:10:54,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:10:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:10:58,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:10:58,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:11:00,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:16,054 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~aa~0#1_11| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (or (not (fp.leq |v_ULTIMATE.start_main_~aa~0#1_11| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))) (not (fp.geq |v_ULTIMATE.start_main_~aa~0#1_11| (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| .cse0))) (fp.lt |v_ULTIMATE.start_main_~aa~0#1_11| ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from false [2021-11-19 14:11:17,325 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-19 14:11:17,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:11:17,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445782418] [2021-11-19 14:11:17,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445782418] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:11:17,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:11:17,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2021-11-19 14:11:17,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052337092] [2021-11-19 14:11:17,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:11:17,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:11:17,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:11:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:11:17,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=99, Unknown=1, NotChecked=20, Total=156 [2021-11-19 14:11:17,329 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-19 14:11:20,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:21,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:30,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:32,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:34,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:36,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:38,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:41,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:44,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:46,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:48,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:50,143 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:52,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:11:56,208 WARN L515 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 [] [2021-11-19 14:11:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:11:56,907 INFO L93 Difference]: Finished difference Result 147 states and 181 transitions. [2021-11-19 14:11:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:11:56,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 52 [2021-11-19 14:11:56,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:11:56,920 INFO L225 Difference]: With dead ends: 147 [2021-11-19 14:11:56,921 INFO L226 Difference]: Without dead ends: 100 [2021-11-19 14:11:56,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=66, Invalid=177, Unknown=1, NotChecked=28, Total=272 [2021-11-19 14:11:56,923 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 51 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 16 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:11:56,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 147 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 12 Unknown, 0 Unchecked, 33.3s Time] [2021-11-19 14:11:56,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-19 14:11:56,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2021-11-19 14:11:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 57 states have internal predecessors, (62), 17 states have call successors, (17), 9 states have call predecessors, (17), 12 states have return successors, (23), 18 states have call predecessors, (23), 17 states have call successors, (23) [2021-11-19 14:11:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 102 transitions. [2021-11-19 14:11:56,947 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 102 transitions. Word has length 52 [2021-11-19 14:11:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:11:56,947 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 102 transitions. [2021-11-19 14:11:56,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-11-19 14:11:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 102 transitions. [2021-11-19 14:11:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:11:56,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:11:56,950 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-11-19 14:11:57,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 14:11:57,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:11:57,165 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:11:57,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:11:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1213025145, now seen corresponding path program 1 times [2021-11-19 14:11:57,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:11:57,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157071248] [2021-11-19 14:11:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:57,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:11:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:11:57,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:11:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:12:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:00,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:12:00,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:12:01,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 14:12:06,377 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:06,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157071248] [2021-11-19 14:12:06,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157071248] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:12:06,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:12:06,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 11 [2021-11-19 14:12:06,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761681273] [2021-11-19 14:12:06,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:06,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:12:06,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:06,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:12:06,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=83, Unknown=1, NotChecked=0, Total=110 [2021-11-19 14:12:06,380 INFO L87 Difference]: Start difference. First operand 85 states and 102 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 14:12:08,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:10,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:12,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:15,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:17,463 WARN L515 Checker$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 [] [2021-11-19 14:12:19,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:21,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:23,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:26,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:28,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:28,070 INFO L93 Difference]: Finished difference Result 175 states and 216 transitions. [2021-11-19 14:12:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:12:28,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) Word has length 52 [2021-11-19 14:12:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:28,082 INFO L225 Difference]: With dead ends: 175 [2021-11-19 14:12:28,082 INFO L226 Difference]: Without dead ends: 99 [2021-11-19 14:12:28,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=37, Invalid=118, Unknown=1, NotChecked=0, Total=156 [2021-11-19 14:12:28,085 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 11 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:28,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 205 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 9 Unknown, 0 Unchecked, 21.5s Time] [2021-11-19 14:12:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-19 14:12:28,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2021-11-19 14:12:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 61 states have internal predecessors, (65), 17 states have call successors, (17), 9 states have call predecessors, (17), 14 states have return successors, (25), 19 states have call predecessors, (25), 17 states have call successors, (25) [2021-11-19 14:12:28,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2021-11-19 14:12:28,106 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 52 [2021-11-19 14:12:28,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:28,107 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2021-11-19 14:12:28,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 5 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 14:12:28,107 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2021-11-19 14:12:28,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:12:28,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:28,109 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-11-19 14:12:28,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:28,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:28,334 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:28,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:28,334 INFO L85 PathProgramCache]: Analyzing trace with hash -769128519, now seen corresponding path program 1 times [2021-11-19 14:12:28,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:28,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533728137] [2021-11-19 14:12:28,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:28,336 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:28,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:28,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:28,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:12:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:12:32,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:12:32,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:12:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:12:34,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:12:58,363 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~aa~0#1_14| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (or (not (fp.geq |v_ULTIMATE.start_main_~aa~0#1_14| (fp.div c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| .cse0))) (not (fp.gt (fp.neg |v_ULTIMATE.start_main_~aa~0#1_14|) ((_ to_fp 11 53) c_currentRoundingMode (_ bv180 32)))) (not (fp.leq |v_ULTIMATE.start_main_~aa~0#1_14| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)))))) is different from true [2021-11-19 14:12:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:12:58,387 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:12:58,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533728137] [2021-11-19 14:12:58,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533728137] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:12:58,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:12:58,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2021-11-19 14:12:58,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800311917] [2021-11-19 14:12:58,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:12:58,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 14:12:58,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:12:58,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 14:12:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=220, Unknown=1, NotChecked=30, Total=306 [2021-11-19 14:12:58,391 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 14:13:01,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:03,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:07,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:09,004 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:11,010 WARN L515 Checker$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 [] [2021-11-19 14:13:13,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:15,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:17,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:19,040 WARN L515 Checker$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 [] [2021-11-19 14:13:20,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:23,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:25,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:29,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 14:13:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:13:29,671 INFO L93 Difference]: Finished difference Result 180 states and 213 transitions. [2021-11-19 14:13:29,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:13:29,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 52 [2021-11-19 14:13:29,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:13:29,686 INFO L225 Difference]: With dead ends: 180 [2021-11-19 14:13:29,686 INFO L226 Difference]: Without dead ends: 99 [2021-11-19 14:13:29,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=77, Invalid=306, Unknown=1, NotChecked=36, Total=420 [2021-11-19 14:13:29,689 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 56 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 15 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:13:29,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 194 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 198 Invalid, 11 Unknown, 0 Unchecked, 30.7s Time] [2021-11-19 14:13:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-19 14:13:29,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2021-11-19 14:13:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 61 states have internal predecessors, (65), 17 states have call successors, (17), 9 states have call predecessors, (17), 14 states have return successors, (25), 19 states have call predecessors, (25), 17 states have call successors, (25) [2021-11-19 14:13:29,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2021-11-19 14:13:29,706 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 52 [2021-11-19 14:13:29,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:13:29,706 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2021-11-19 14:13:29,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 5 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 14:13:29,707 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2021-11-19 14:13:29,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 14:13:29,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:13:29,708 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:13:29,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 14:13:29,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:13:29,928 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:13:29,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:13:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash -351914407, now seen corresponding path program 1 times [2021-11-19 14:13:29,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:13:29,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451408212] [2021-11-19 14:13:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:29,938 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:13:29,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:13:29,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:13:29,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0879bbeb-1682-4e6e-b3ea-7e6003258c4e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:13:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:33,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 14:13:33,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:48,270 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32))) (and (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32)) (or (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (not (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (not (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))))) is different from false [2021-11-19 14:13:58,643 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from false [2021-11-19 14:14:00,687 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.leq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0)) (fp.geq |c_ULTIMATE.start_main_~aa~0#1| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0))))) is different from true [2021-11-19 14:14:19,359 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from false [2021-11-19 14:14:21,403 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) is different from true [2021-11-19 14:14:31,783 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~a~0#1| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (and (fp.geq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (fp.div c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| .cse0)) (fp.leq |v_ULTIMATE.start_main_~aa~0#1_BEFORE_CALL_10| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_main_~a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) .cse0))))) (= c_SIN_~x |c_SIN_#in~x|)) is different from false