./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG --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 58d35397ee33de267427235b8f081aebcc79e3d3b9bff3261f2d8c22664081d2 ................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG --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 58d35397ee33de267427235b8f081aebcc79e3d3b9bff3261f2d8c22664081d2 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:03:12,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:03:12,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:03:12,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:03:12,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:03:12,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:03:12,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:03:12,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:03:12,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:03:12,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:03:12,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:03:12,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:03:12,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:03:12,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:03:12,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:03:12,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:03:12,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:03:12,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:03:12,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:03:12,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:03:12,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:03:12,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:03:12,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:03:12,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:03:12,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:03:12,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:03:12,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:03:12,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:03:12,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:03:12,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:03:12,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:03:12,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:03:12,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:03:12,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:03:12,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:03:12,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:03:12,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:03:12,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:03:12,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:03:12,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:03:12,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:03:12,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:03:12,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:03:12,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:03:12,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:03:12,837 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:03:12,837 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:03:12,838 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:03:12,838 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:03:12,838 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:03:12,844 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:03:12,845 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:03:12,846 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:03:12,846 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:03:12,846 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:03:12,847 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:03:12,847 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:03:12,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:03:12,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:03:12,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:03:12,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:03:12,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:03:12,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:03:12,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:03:12,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:03:12,850 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:03:12,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:03:12,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:03:12,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:03:12,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:03:12,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:03:12,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:03:12,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:12,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:03:12,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:03:12,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:03:12,854 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:03:12,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:03:12,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:03:12,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:03:12,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:03:12,856 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_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d35397ee33de267427235b8f081aebcc79e3d3b9bff3261f2d8c22664081d2 [2021-10-29 05:03:13,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:03:13,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:03:13,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:03:13,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:03:13,143 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:03:13,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-10-29 05:03:13,221 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/e6b471372/2e7e3489878f497583fab612fdebaa5a/FLAG503808bce [2021-10-29 05:03:13,666 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:03:13,666 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-10-29 05:03:13,673 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/e6b471372/2e7e3489878f497583fab612fdebaa5a/FLAG503808bce [2021-10-29 05:03:14,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/e6b471372/2e7e3489878f497583fab612fdebaa5a [2021-10-29 05:03:14,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:03:14,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:03:14,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:14,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:03:14,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:03:14,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51584d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14, skipping insertion in model container [2021-10-29 05:03:14,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:03:14,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:03:14,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/sv-benchmarks/c/floats-cdfpl/sine_7.i[1143,1156] [2021-10-29 05:03:14,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:14,337 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:03:14,359 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/sv-benchmarks/c/floats-cdfpl/sine_7.i[1143,1156] [2021-10-29 05:03:14,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:14,376 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:03:14,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14 WrapperNode [2021-10-29 05:03:14,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:14,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:03:14,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:03:14,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:03:14,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:03:14,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:03:14,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:03:14,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:03:14,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:03:14,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:03:14,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:03:14,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:03:14,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (1/1) ... [2021-10-29 05:03:14,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:14,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:03:14,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:03:14,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:03:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:03:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:03:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:03:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:03:14,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:03:14,816 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:03:14,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:14 BoogieIcfgContainer [2021-10-29 05:03:14,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:03:14,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:03:14,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:03:14,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:03:14,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:03:14" (1/3) ... [2021-10-29 05:03:14,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61000e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:03:14, skipping insertion in model container [2021-10-29 05:03:14,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:14" (2/3) ... [2021-10-29 05:03:14,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61000e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:03:14, skipping insertion in model container [2021-10-29 05:03:14,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:14" (3/3) ... [2021-10-29 05:03:14,828 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_7.i [2021-10-29 05:03:14,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:03:14,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:03:14,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:03:14,888 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 [2021-10-29 05:03:14,889 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:03:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:03:14,920 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:14,920 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:03:14,921 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:14,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:14,938 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2021-10-29 05:03:14,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:03:14,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750757840] [2021-10-29 05:03:14,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:14,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:03:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:03:15,052 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:03:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:03:15,094 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:03:15,098 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:03:15,099 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:03:15,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:03:15,105 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:03:15,111 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:03:15,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:03:15 BoogieIcfgContainer [2021-10-29 05:03:15,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:03:15,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:03:15,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:03:15,134 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:03:15,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:14" (3/4) ... [2021-10-29 05:03:15,138 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:03:15,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:03:15,144 INFO L168 Benchmark]: Toolchain (without parser) took 1100.21 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 47.9 MB in the beginning and 68.4 MB in the end (delta: -20.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:15,145 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:15,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.38 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 47.8 MB in the beginning and 95.3 MB in the end (delta: -47.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:15,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.84 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 93.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:15,149 INFO L168 Benchmark]: Boogie Preprocessor took 42.22 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 92.8 MB in the end (delta: 815.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:15,151 INFO L168 Benchmark]: RCFGBuilder took 361.82 ms. Allocated memory is still 119.5 MB. Free memory was 92.6 MB in the beginning and 81.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:15,157 INFO L168 Benchmark]: TraceAbstraction took 310.16 ms. Allocated memory is still 119.5 MB. Free memory was 81.4 MB in the beginning and 68.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:15,158 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 119.5 MB. Free memory was 68.6 MB in the beginning and 68.4 MB in the end (delta: 243.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:15,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 35.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.38 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 47.8 MB in the beginning and 95.3 MB in the end (delta: -47.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.84 ms. Allocated memory is still 119.5 MB. Free memory was 95.2 MB in the beginning and 93.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.22 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 92.8 MB in the end (delta: 815.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 361.82 ms. Allocated memory is still 119.5 MB. Free memory was 92.6 MB in the beginning and 81.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 310.16 ms. Allocated memory is still 119.5 MB. Free memory was 81.4 MB in the beginning and 68.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.11 ms. Allocated memory is still 119.5 MB. Free memory was 68.6 MB in the beginning and 68.4 MB in the end (delta: 243.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.5f && result >= -1.5f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:03:15,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:03:17,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:03:17,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:03:17,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:03:17,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:03:17,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:03:17,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:03:17,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:03:17,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:03:17,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:03:17,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:03:17,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:03:17,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:03:17,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:03:17,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:03:17,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:03:17,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:03:17,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:03:17,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:03:17,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:03:17,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:03:17,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:03:17,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:03:17,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:03:17,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:03:17,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:03:17,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:03:17,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:03:17,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:03:17,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:03:17,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:03:17,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:03:17,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:03:17,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:03:17,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:03:17,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:03:17,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:03:17,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:03:17,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:03:17,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:03:17,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:03:17,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:03:18,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:03:18,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:03:18,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:03:18,033 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:03:18,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:03:18,033 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:03:18,034 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:03:18,034 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:03:18,034 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:03:18,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:03:18,035 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:03:18,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:03:18,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:03:18,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:03:18,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:03:18,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:03:18,037 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:03:18,037 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:03:18,037 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:03:18,038 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:03:18,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:03:18,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:03:18,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:03:18,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:03:18,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:03:18,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:03:18,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:18,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:03:18,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:03:18,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:03:18,040 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:03:18,041 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:03:18,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:03:18,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:03:18,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:03:18,042 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_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d35397ee33de267427235b8f081aebcc79e3d3b9bff3261f2d8c22664081d2 [2021-10-29 05:03:18,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:03:18,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:03:18,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:03:18,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:03:18,509 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:03:18,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-10-29 05:03:18,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/b0d7dcd2a/936553fd5bfb41c3974e8473e57c76cb/FLAGf8df3fd73 [2021-10-29 05:03:19,296 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:03:19,296 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-10-29 05:03:19,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/b0d7dcd2a/936553fd5bfb41c3974e8473e57c76cb/FLAGf8df3fd73 [2021-10-29 05:03:19,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/data/b0d7dcd2a/936553fd5bfb41c3974e8473e57c76cb [2021-10-29 05:03:19,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:03:19,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:03:19,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:19,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:03:19,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:03:19,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:19,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697e411c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19, skipping insertion in model container [2021-10-29 05:03:19,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:19,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:03:19,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:03:19,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/sv-benchmarks/c/floats-cdfpl/sine_7.i[1143,1156] [2021-10-29 05:03:19,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:19,898 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:03:19,931 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/sv-benchmarks/c/floats-cdfpl/sine_7.i[1143,1156] [2021-10-29 05:03:19,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:19,958 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:03:19,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19 WrapperNode [2021-10-29 05:03:19,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:19,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:03:19,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:03:19,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:03:19,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:19,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:03:20,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:03:20,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:03:20,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:03:20,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:03:20,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:03:20,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:03:20,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:03:20,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (1/1) ... [2021-10-29 05:03:20,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:20,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:03:20,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:03:20,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:03:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:03:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:03:20,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:03:20,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:03:22,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:03:22,704 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:03:22,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:22 BoogieIcfgContainer [2021-10-29 05:03:22,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:03:22,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:03:22,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:03:22,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:03:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:03:19" (1/3) ... [2021-10-29 05:03:22,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147d11ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:03:22, skipping insertion in model container [2021-10-29 05:03:22,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:19" (2/3) ... [2021-10-29 05:03:22,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147d11ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:03:22, skipping insertion in model container [2021-10-29 05:03:22,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:22" (3/3) ... [2021-10-29 05:03:22,717 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_7.i [2021-10-29 05:03:22,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:03:22,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:03:22,795 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:03:22,804 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 [2021-10-29 05:03:22,804 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:03:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:22,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:03:22,825 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:22,826 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:03:22,826 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:22,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:22,833 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-29 05:03:22,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:22,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932223781] [2021-10-29 05:03:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:22,850 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:22,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:22,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:22,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:03:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:23,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:03:23,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:23,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:23,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:23,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932223781] [2021-10-29 05:03:23,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932223781] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:23,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:23,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:03:23,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746214911] [2021-10-29 05:03:23,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:03:23,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:23,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:03:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:03:23,725 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:23,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:23,740 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-29 05:03:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:03:23,742 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:03:23,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:23,751 INFO L225 Difference]: With dead ends: 19 [2021-10-29 05:03:23,751 INFO L226 Difference]: Without dead ends: 7 [2021-10-29 05:03:23,754 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:03:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-29 05:03:23,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-29 05:03:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-10-29 05:03:23,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-10-29 05:03:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:23,803 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-10-29 05:03:23,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:23,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-29 05:03:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:03:23,804 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:23,805 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:03:23,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:24,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:24,029 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:24,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:24,030 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-29 05:03:24,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:24,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204721844] [2021-10-29 05:03:24,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:24,031 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:24,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:24,035 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:24,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:06:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:36,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:06:36,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:52,977 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (and (= c_ULTIMATE.start_main_~result~0 (let ((.cse0 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse0 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse1 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse2)) (fp.lt ULTIMATE.start_main_~IN~0 .cse2)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 05:07:48,270 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 157079632679.0 100000000000.0)))) (and (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (let ((.cse1 (let ((.cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~IN~0 (fp.div roundNearestTiesToEven .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 6.0))) (fp.div roundNearestTiesToEven .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 120.0))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) roundNearestTiesToEven 5040.0)))))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse0))))) is different from false [2021-10-29 05:07:50,396 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 157079632679.0 100000000000.0)))) (and (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (let ((.cse1 (let ((.cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~IN~0 (fp.div roundNearestTiesToEven .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 6.0))) (fp.div roundNearestTiesToEven .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 120.0))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) roundNearestTiesToEven 5040.0)))))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse0))))) is different from true [2021-10-29 05:07:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:50,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:56,061 WARN L207 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 23 [2021-10-29 05:08:01,540 WARN L207 SmtUtils]: Spent 5.48 s on a formula simplification that was a NOOP. DAG size: 24 [2021-10-29 05:08:03,874 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-10-29 05:08:06,190 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-10-29 05:08:11,733 WARN L207 SmtUtils]: Spent 5.52 s on a formula simplification that was a NOOP. DAG size: 3 [2021-10-29 05:08:17,192 WARN L207 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 23 [2021-10-29 05:08:22,700 WARN L207 SmtUtils]: Spent 5.51 s on a formula simplification that was a NOOP. DAG size: 24 [2021-10-29 05:08:25,035 WARN L838 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1))))) is different from false [2021-10-29 05:08:27,348 WARN L860 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1))))) is different from true [2021-10-29 05:08:37,517 WARN L207 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 6 [2021-10-29 05:08:42,962 WARN L207 SmtUtils]: Spent 5.44 s on a formula simplification that was a NOOP. DAG size: 7 [2021-10-29 05:08:48,471 WARN L207 SmtUtils]: Spent 5.51 s on a formula simplification that was a NOOP. DAG size: 6 [2021-10-29 05:08:58,661 WARN L207 SmtUtils]: Spent 5.54 s on a formula simplification that was a NOOP. DAG size: 7 [2021-10-29 05:09:04,122 WARN L207 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 6 [2021-10-29 05:09:09,616 WARN L207 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 24 [2021-10-29 05:09:15,186 WARN L207 SmtUtils]: Spent 5.57 s on a formula simplification that was a NOOP. DAG size: 23 [2021-10-29 05:09:20,701 WARN L207 SmtUtils]: Spent 5.51 s on a formula simplification that was a NOOP. DAG size: 7 [2021-10-29 05:09:22,842 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) is different from false [2021-10-29 05:09:25,162 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) is different from true [2021-10-29 05:09:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:09:25,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:09:25,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204721844] [2021-10-29 05:09:25,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204721844] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:09:25,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:09:25,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-10-29 05:09:25,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131293924] [2021-10-29 05:09:25,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 05:09:25,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:09:25,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 05:09:25,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=20, Unknown=9, NotChecked=60, Total=110 [2021-10-29 05:09:25,169 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:27,350 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 05:09:29,662 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 05:09:31,857 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (let ((.cse0 (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse3))) (.cse1 (fp.lt c_ULTIMATE.start_main_~IN~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and .cse2 (or (not .cse0) (not .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven) (or .cse2 (let ((.cse4 (let ((.cse6 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse7 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse6 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse6 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse7 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse4 .cse5) (fp.geq .cse4 (fp.neg .cse5))))))) is different from false [2021-10-29 05:09:34,172 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (let ((.cse0 (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse3))) (.cse1 (fp.lt c_ULTIMATE.start_main_~IN~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and .cse2 (or (not .cse0) (not .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven) (or .cse2 (let ((.cse4 (let ((.cse6 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse7 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse6 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse6 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse7 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse4 .cse5) (fp.geq .cse4 (fp.neg .cse5))))))) is different from true [2021-10-29 05:09:36,371 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0))) (.cse0 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse2)) (fp.lt c_ULTIMATE.start_main_~IN~0 .cse2) (fp.geq .cse0 (fp.neg .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-29 05:09:38,682 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0))) (.cse0 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse2)) (fp.lt c_ULTIMATE.start_main_~IN~0 .cse2) (fp.geq .cse0 (fp.neg .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-29 05:09:40,895 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq c_ULTIMATE.start_main_~result~0 (fp.neg .cse0)) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (and (= c_ULTIMATE.start_main_~result~0 (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse1 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse3)) (fp.lt ULTIMATE.start_main_~IN~0 .cse3)))) (fp.leq c_ULTIMATE.start_main_~result~0 .cse0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-29 05:09:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:09:40,915 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-10-29 05:09:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:09:40,916 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:09:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:09:40,916 INFO L225 Difference]: With dead ends: 7 [2021-10-29 05:09:40,916 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:09:40,918 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=29, Invalid=21, Unknown=16, NotChecked=144, Total=210 [2021-10-29 05:09:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:09:40,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:09:40,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:40,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:09:40,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-10-29 05:09:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:09:40,919 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:09:40,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:09:40,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:09:40,923 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:09:40,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:09:41,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:09:41,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:09:41,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:09:41,171 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:09:41,171 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:09:41,172 INFO L860 garLoopResultBuilder]: At program point L30(lines 18 31) the Hoare annotation is: true [2021-10-29 05:09:41,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:09:41,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:09:41,173 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-10-29 05:09:41,173 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2021-10-29 05:09:41,173 INFO L857 garLoopResultBuilder]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2021-10-29 05:09:41,173 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2021-10-29 05:09:41,174 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-29 05:09:41,174 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-10-29 05:09:41,178 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:09:41,180 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:09:41,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:09:41 BoogieIcfgContainer [2021-10-29 05:09:41,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:09:41,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:09:41,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:09:41,192 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:09:41,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:22" (3/4) ... [2021-10-29 05:09:41,200 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:09:41,212 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 05:09:41,213 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:09:41,213 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:09:41,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:09:41,266 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:09:41,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:09:41,275 INFO L168 Benchmark]: Toolchain (without parser) took 381603.96 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 42.1 MB in the beginning and 40.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:41,277 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:09:41,278 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.74 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 31.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:41,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 62.9 MB. Free memory was 31.6 MB in the beginning and 30.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:41,279 INFO L168 Benchmark]: Boogie Preprocessor took 41.76 ms. Allocated memory is still 62.9 MB. Free memory was 30.1 MB in the beginning and 28.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:09:41,280 INFO L168 Benchmark]: RCFGBuilder took 2663.94 ms. Allocated memory is still 62.9 MB. Free memory was 28.9 MB in the beginning and 37.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:41,285 INFO L168 Benchmark]: TraceAbstraction took 378480.93 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 37.0 MB in the beginning and 42.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:41,287 INFO L168 Benchmark]: Witness Printer took 78.48 ms. Allocated memory is still 77.6 MB. Free memory was 42.5 MB in the beginning and 40.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:09:41,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 62.9 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.74 ms. Allocated memory is still 62.9 MB. Free memory was 41.9 MB in the beginning and 31.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 62.9 MB. Free memory was 31.6 MB in the beginning and 30.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.76 ms. Allocated memory is still 62.9 MB. Free memory was 30.1 MB in the beginning and 28.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2663.94 ms. Allocated memory is still 62.9 MB. Free memory was 28.9 MB in the beginning and 37.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 378480.93 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 37.0 MB in the beginning and 42.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Witness Printer took 78.48 ms. Allocated memory is still 77.6 MB. Free memory was 42.5 MB in the beginning and 40.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 378.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 192.7s SatisfiabilityAnalysisTime, 169.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 3 QuantifiedInterpolants, 721 SizeOfPredicates, 6 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-29 05:09:41,522 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 05:09:41,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cf4a8-230b-47f2-9fe5-b69208fee35c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...