./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan --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 289b4e9691346b022b94987a9b149f3a27c31060 ......................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan --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 289b4e9691346b022b94987a9b149f3a27c31060 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:15:34,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:15:34,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:15:34,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:15:34,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:15:34,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:15:34,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:15:34,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:15:34,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:15:34,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:15:34,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:15:34,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:15:34,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:15:34,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:15:34,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:15:34,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:15:34,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:15:34,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:15:34,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:15:34,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:15:34,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:15:34,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:15:34,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:15:34,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:15:34,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:15:34,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:15:34,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:15:34,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:15:34,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:15:34,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:15:34,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:15:34,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:15:34,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:15:34,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:15:34,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:15:34,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:15:34,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:15:34,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:15:34,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:15:34,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:15:34,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:15:34,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:15:34,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:15:34,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:15:34,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:15:34,187 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:15:34,187 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:15:34,187 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:15:34,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:15:34,188 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:15:34,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:15:34,188 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:15:34,188 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:15:34,188 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:15:34,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:15:34,189 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:15:34,189 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:15:34,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:15:34,190 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:15:34,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:15:34,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:15:34,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:15:34,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:15:34,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:15:34,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:15:34,191 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:15:34,191 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:15:34,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:15:34,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:15:34,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:15:34,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:15:34,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:15:34,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:15:34,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:15:34,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:15:34,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:15:34,193 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:15:34,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:15:34,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:15:34,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:15:34,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:15:34,194 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-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289b4e9691346b022b94987a9b149f3a27c31060 [2020-12-09 10:15:34,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:15:34,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:15:34,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:15:34,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:15:34,398 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:15:34,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2020-12-09 10:15:34,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/cee10195c/377ad1da85504cc38d5bc0773b83b7bc/FLAG5753fa07f [2020-12-09 10:15:34,806 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:15:34,806 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2020-12-09 10:15:34,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/cee10195c/377ad1da85504cc38d5bc0773b83b7bc/FLAG5753fa07f [2020-12-09 10:15:34,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/cee10195c/377ad1da85504cc38d5bc0773b83b7bc [2020-12-09 10:15:34,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:15:34,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:15:34,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:15:34,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:15:34,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:15:34,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:15:34" (1/1) ... [2020-12-09 10:15:34,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121f3083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:34, skipping insertion in model container [2020-12-09 10:15:34,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:15:34" (1/1) ... [2020-12-09 10:15:34,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:15:34,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:15:34,958 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i[948,961] [2020-12-09 10:15:34,968 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:707) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 10:15:34,972 INFO L168 Benchmark]: Toolchain (without parser) took 146.02 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.2 MB in the beginning and 96.4 MB in the end (delta: -42.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:15:34,973 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:15:34,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.04 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.0 MB in the beginning and 96.4 MB in the end (delta: -42.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:15:34,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 144.04 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.0 MB in the beginning and 96.4 MB in the end (delta: -42.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:15:36,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:15:36,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:15:36,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:15:36,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:15:36,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:15:36,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:15:36,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:15:36,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:15:36,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:15:36,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:15:36,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:15:36,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:15:36,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:15:36,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:15:36,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:15:36,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:15:36,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:15:36,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:15:36,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:15:36,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:15:36,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:15:36,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:15:36,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:15:36,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:15:36,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:15:36,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:15:36,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:15:36,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:15:36,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:15:36,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:15:36,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:15:36,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:15:36,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:15:36,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:15:36,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:15:36,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:15:36,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:15:36,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:15:36,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:15:36,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:15:36,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:15:36,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:15:36,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:15:36,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:15:36,444 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:15:36,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:15:36,444 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:15:36,445 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:15:36,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:15:36,445 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:15:36,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:15:36,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:15:36,446 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:15:36,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:15:36,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:15:36,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:15:36,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:15:36,449 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-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 289b4e9691346b022b94987a9b149f3a27c31060 [2020-12-09 10:15:36,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:15:36,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:15:36,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:15:36,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:15:36,700 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:15:36,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2020-12-09 10:15:36,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/bf46c84ff/03a28243f8b84ce28a65dc7566e47d47/FLAGef8b65f6b [2020-12-09 10:15:37,153 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:15:37,153 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i [2020-12-09 10:15:37,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/bf46c84ff/03a28243f8b84ce28a65dc7566e47d47/FLAGef8b65f6b [2020-12-09 10:15:37,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/data/bf46c84ff/03a28243f8b84ce28a65dc7566e47d47 [2020-12-09 10:15:37,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:15:37,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:15:37,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:15:37,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:15:37,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:15:37,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ee94c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37, skipping insertion in model container [2020-12-09 10:15:37,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:15:37,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:15:37,317 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i[948,961] [2020-12-09 10:15:37,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:15:37,361 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:15:37,379 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound5.i[948,961] [2020-12-09 10:15:37,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:15:37,413 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:15:37,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37 WrapperNode [2020-12-09 10:15:37,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:15:37,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:15:37,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:15:37,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:15:37,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:15:37,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:15:37,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:15:37,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:15:37,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... [2020-12-09 10:15:37,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:15:37,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:15:37,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:15:37,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:15:37,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:15:37,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:15:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:15:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:15:37,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:15:40,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:15:40,505 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2020-12-09 10:15:40,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:15:40 BoogieIcfgContainer [2020-12-09 10:15:40,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:15:40,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:15:40,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:15:40,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:15:40,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:15:37" (1/3) ... [2020-12-09 10:15:40,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1953ab2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:15:40, skipping insertion in model container [2020-12-09 10:15:40,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:15:37" (2/3) ... [2020-12-09 10:15:40,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1953ab2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:15:40, skipping insertion in model container [2020-12-09 10:15:40,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:15:40" (3/3) ... [2020-12-09 10:15:40,516 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound5.i [2020-12-09 10:15:40,527 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:15:40,529 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 10:15:40,537 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 10:15:40,553 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:15:40,553 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:15:40,553 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:15:40,553 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:15:40,553 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:15:40,554 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:15:40,554 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:15:40,554 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:15:40,562 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-09 10:15:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 10:15:40,565 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:15:40,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:15:40,566 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:15:40,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:15:40,570 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-12-09 10:15:40,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:15:40,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207215733] [2020-12-09 10:15:40,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 10:15:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:15:40,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 10:15:40,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:15:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:15:40,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:15:40,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207215733] [2020-12-09 10:15:40,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:15:40,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:15:40,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796011283] [2020-12-09 10:15:40,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 10:15:40,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:15:40,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 10:15:40,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:15:40,920 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-09 10:15:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:15:40,933 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2020-12-09 10:15:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 10:15:40,934 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-09 10:15:40,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:15:40,940 INFO L225 Difference]: With dead ends: 65 [2020-12-09 10:15:40,940 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 10:15:40,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 10:15:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 10:15:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 10:15:40,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 10:15:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-12-09 10:15:40,965 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 13 [2020-12-09 10:15:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:15:40,966 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-12-09 10:15:40,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 10:15:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-12-09 10:15:40,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 10:15:40,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:15:40,967 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:15:41,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:15:41,169 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:15:41,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:15:41,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-12-09 10:15:41,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:15:41,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464405141] [2020-12-09 10:15:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 10:15:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:15:41,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 10:15:41,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:15:42,027 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2020-12-09 10:15:42,601 WARN L197 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2020-12-09 10:15:43,078 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 10:15:44,480 WARN L197 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 10:15:44,510 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:15:44,520 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:15:44,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:15:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:15:45,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:15:45,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464405141] [2020-12-09 10:15:45,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:15:45,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-09 10:15:45,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113166349] [2020-12-09 10:15:45,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 10:15:45,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:15:45,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 10:15:45,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-12-09 10:15:45,114 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 10 states. [2020-12-09 10:15:45,692 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2020-12-09 10:15:46,347 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 9 [2020-12-09 10:15:47,323 WARN L197 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 11 [2020-12-09 10:15:52,176 WARN L197 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 10:15:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:15:57,795 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2020-12-09 10:15:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 10:15:57,807 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-12-09 10:15:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:15:57,809 INFO L225 Difference]: With dead ends: 50 [2020-12-09 10:15:57,809 INFO L226 Difference]: Without dead ends: 48 [2020-12-09 10:15:57,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-12-09 10:15:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-12-09 10:15:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2020-12-09 10:15:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-09 10:15:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-12-09 10:15:57,816 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 13 [2020-12-09 10:15:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:15:57,816 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-12-09 10:15:57,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 10:15:57,816 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-12-09 10:15:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 10:15:57,817 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:15:57,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:15:58,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:15:58,019 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:15:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:15:58,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1454243009, now seen corresponding path program 1 times [2020-12-09 10:15:58,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:15:58,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674710923] [2020-12-09 10:15:58,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 10:15:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:15:58,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:15:58,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:15:58,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:15:58,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:15:58,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674710923] [2020-12-09 10:15:58,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:15:58,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 10:15:58,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823385224] [2020-12-09 10:15:58,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:15:58,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:15:58,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:15:58,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 10:15:58,510 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 4 states. [2020-12-09 10:15:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:15:59,536 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2020-12-09 10:15:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 10:15:59,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-09 10:15:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:15:59,547 INFO L225 Difference]: With dead ends: 48 [2020-12-09 10:15:59,547 INFO L226 Difference]: Without dead ends: 46 [2020-12-09 10:15:59,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 10:15:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-09 10:15:59,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2020-12-09 10:15:59,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-09 10:15:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-12-09 10:15:59,554 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 15 [2020-12-09 10:15:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:15:59,554 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-12-09 10:15:59,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:15:59,554 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-12-09 10:15:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 10:15:59,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:15:59,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:15:59,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 10:15:59,757 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:15:59,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:15:59,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1663317220, now seen corresponding path program 1 times [2020-12-09 10:15:59,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:15:59,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709760872] [2020-12-09 10:15:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 10:16:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:16:00,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 10:16:00,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:16:00,757 WARN L197 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2020-12-09 10:16:01,480 WARN L197 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2020-12-09 10:16:02,053 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 10:16:02,314 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 10:16:03,961 WARN L197 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 10:16:08,948 WARN L197 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2020-12-09 10:16:08,972 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:16:08,976 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:16:08,980 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:16:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:16:09,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:16:09,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709760872] [2020-12-09 10:16:09,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:16:09,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-09 10:16:09,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022632477] [2020-12-09 10:16:09,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 10:16:09,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:16:09,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 10:16:09,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-09 10:16:09,627 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 11 states. [2020-12-09 10:16:10,183 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 7 [2020-12-09 10:16:11,048 WARN L197 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 9 [2020-12-09 10:16:12,320 WARN L197 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 11 [2020-12-09 10:16:19,408 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 10:16:24,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:16:24,276 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2020-12-09 10:16:24,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-09 10:16:24,297 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2020-12-09 10:16:24,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:16:24,298 INFO L225 Difference]: With dead ends: 47 [2020-12-09 10:16:24,298 INFO L226 Difference]: Without dead ends: 43 [2020-12-09 10:16:24,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-12-09 10:16:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-09 10:16:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2020-12-09 10:16:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-09 10:16:24,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-12-09 10:16:24,307 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 17 [2020-12-09 10:16:24,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:16:24,307 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-12-09 10:16:24,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 10:16:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-12-09 10:16:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 10:16:24,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:16:24,308 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:16:24,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 10:16:24,510 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:16:24,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:16:24,511 INFO L82 PathProgramCache]: Analyzing trace with hash 729574747, now seen corresponding path program 1 times [2020-12-09 10:16:24,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:16:24,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064238295] [2020-12-09 10:16:24,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a78a20c2-b509-415f-a5ea-d91e77924f6d/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 10:16:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:16:24,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 10:16:24,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:16:25,747 WARN L197 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2020-12-09 10:16:26,697 WARN L197 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2020-12-09 10:16:26,953 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 10:16:27,481 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 10:16:27,816 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-09 10:16:30,249 WARN L838 $PredicateComparison]: unable to prove that (and (bvule c_ULTIMATE.start_main_~d~0 (_ bv5 32)) (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32))) (and (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (= ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~s~0))) (bvugt c_ULTIMATE.start_main_~d~0 (_ bv2 32))) is different from false [2020-12-09 10:16:39,844 WARN L838 $PredicateComparison]: unable to prove that (and (bvult (_ bv2 32) (_ bv5 32)) (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32))) (and (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (bvult (_ bv2 32) ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven ULTIMATE.start_main_~n~0))))))) is different from false [2020-12-09 10:16:42,126 WARN L860 $PredicateComparison]: unable to prove that (and (bvult (_ bv2 32) (_ bv5 32)) (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32))) (and (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (bvult (_ bv2 32) ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven ULTIMATE.start_main_~n~0))))))) is different from true [2020-12-09 10:16:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2020-12-09 10:16:56,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:16:59,214 WARN L838 $PredicateComparison]: unable to prove that (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0)) is different from false [2020-12-09 10:17:01,609 WARN L860 $PredicateComparison]: unable to prove that (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0)) is different from true [2020-12-09 10:17:04,029 WARN L838 $PredicateComparison]: unable to prove that (or (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0)) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from false [2020-12-09 10:17:06,437 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0)) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from true [2020-12-09 10:17:06,446 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 10:17:06,446 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 10:17:08,862 WARN L838 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0))) is different from false [2020-12-09 10:17:11,265 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0))) is different from true [2020-12-09 10:17:13,668 WARN L838 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0)) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from false [2020-12-09 10:17:16,073 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (not (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~a~0)) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from true [2020-12-09 10:17:16,080 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-12-09 10:17:16,081 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 10:17:18,508 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))))) (or (bvule (_ bv5 32) (_ bv2 32)) (bvule .cse0 (_ bv2 32)) (bvult .cse0 (_ bv0 32)) (bvult (_ bv5 32) (_ bv0 32)))) is different from false [2020-12-09 10:17:20,913 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))))) (or (bvule (_ bv5 32) (_ bv2 32)) (bvule .cse0 (_ bv2 32)) (bvult .cse0 (_ bv0 32)) (bvult (_ bv5 32) (_ bv0 32)))) is different from true [2020-12-09 10:17:23,326 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))))) (or (bvule (_ bv5 32) (_ bv2 32)) (bvule .cse0 (_ bv2 32)) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (bvult .cse0 (_ bv0 32)) (bvult (_ bv5 32) (_ bv0 32)))) is different from false [2020-12-09 10:17:25,732 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~n~0))))) (or (bvule (_ bv5 32) (_ bv2 32)) (bvule .cse0 (_ bv2 32)) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (bvult .cse0 (_ bv0 32)) (bvult (_ bv5 32) (_ bv0 32)))) is different from true [2020-12-09 10:17:25,742 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-12-09 10:17:25,742 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 10:17:28,053 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0_10 (_ BitVec 32))) (let ((.cse0 ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~n~0_10))))) (or (bvult .cse0 (_ bv0 32)) (not (bvule v_ULTIMATE.start_main_~n~0_10 (_ bv5 32))) (not (bvuge v_ULTIMATE.start_main_~n~0_10 (_ bv0 32))) (bvule .cse0 (_ bv2 32))))) is different from false [2020-12-09 10:17:30,482 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0_10 (_ BitVec 32))) (let ((.cse0 ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt c_currentRoundingMode ((_ to_fp_unsigned 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~n~0_10))))) (or (bvult .cse0 (_ bv0 32)) (not (bvule v_ULTIMATE.start_main_~n~0_10 (_ bv5 32))) (not (bvuge v_ULTIMATE.start_main_~n~0_10 (_ bv0 32))) (bvule .cse0 (_ bv2 32))))) is different from true [2020-12-09 10:17:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:17:30,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064238295] [2020-12-09 10:17:30,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 10:17:30,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 18 [2020-12-09 10:17:30,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387696700] [2020-12-09 10:17:30,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 10:17:30,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:17:30,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 10:17:30,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=62, Unknown=17, NotChecked=216, Total=342 [2020-12-09 10:17:30,487 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 10 states. [2020-12-09 10:17:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:17:30,788 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2020-12-09 10:17:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 10:17:30,800 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-12-09 10:17:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:17:30,800 INFO L225 Difference]: With dead ends: 39 [2020-12-09 10:17:30,800 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:17:30,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=47, Invalid=62, Unknown=17, NotChecked=216, Total=342 [2020-12-09 10:17:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:17:30,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:17:30,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:17:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:17:30,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2020-12-09 10:17:30,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:17:30,802 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:17:30,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 10:17:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:17:30,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:17:31,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 10:17:31,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:17:32,441 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 10:17:33,751 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 10:17:33,958 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 10:17:36,298 WARN L197 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-12-09 10:17:37,524 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 10:17:37,527 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2020-12-09 10:17:37,527 INFO L262 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-12-09 10:17:37,527 INFO L258 CegarLoopResult]: At program point L19-2(lines 18 24) the Hoare annotation is: (let ((.cse0 (bvadd ULTIMATE.start_main_~d~0 (_ bv4294967294 32)))) (and (= (bvadd (bvmul (bvneg (bvudiv ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (_ bv4 32)) (bvmul (bvudiv ULTIMATE.start_main_~n~0 .cse0) (_ bv4 32))) ULTIMATE.start_main_~q~0) (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv5 32)) (= ULTIMATE.start_main_~k~0 (bvurem ULTIMATE.start_main_~n~0 .cse0)) (not (bvuge ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~d~0)) (= ULTIMATE.start_main_~r~0 (bvurem ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (= (_ bv0 32) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~d~0) (bvugt ULTIMATE.start_main_~a~0 (_ bv2 32)))) [2020-12-09 10:17:37,527 INFO L262 CegarLoopResult]: For program point L19-3(lines 19 22) no Hoare annotation was computed. [2020-12-09 10:17:37,528 INFO L258 CegarLoopResult]: At program point L19-5(lines 18 24) the Hoare annotation is: (let ((.cse0 (bvadd ULTIMATE.start_main_~d~0 (_ bv4294967294 32)))) (and (= (bvadd (bvmul (bvneg (bvudiv ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (_ bv4 32)) (bvmul (bvudiv ULTIMATE.start_main_~n~0 .cse0) (_ bv4 32))) ULTIMATE.start_main_~q~0) (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv5 32)) (= ULTIMATE.start_main_~k~0 (bvurem ULTIMATE.start_main_~n~0 .cse0)) (not (bvuge ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~d~0)) (= ULTIMATE.start_main_~r~0 (bvurem ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (= (_ bv0 32) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~d~0) (bvugt ULTIMATE.start_main_~a~0 (_ bv2 32)))) [2020-12-09 10:17:37,528 INFO L262 CegarLoopResult]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2020-12-09 10:17:37,528 INFO L258 CegarLoopResult]: At program point L19-8(lines 18 24) the Hoare annotation is: (let ((.cse0 (bvadd ULTIMATE.start_main_~d~0 (_ bv4294967294 32)))) (and (= (bvadd (bvmul (bvneg (bvudiv ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (_ bv4 32)) (bvmul (bvudiv ULTIMATE.start_main_~n~0 .cse0) (_ bv4 32))) ULTIMATE.start_main_~q~0) (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv5 32)) (= ULTIMATE.start_main_~k~0 (bvurem ULTIMATE.start_main_~n~0 .cse0)) (not (bvuge ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~d~0)) (= ULTIMATE.start_main_~r~0 (bvurem ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (= (_ bv0 32) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~d~0) (bvugt ULTIMATE.start_main_~a~0 (_ bv2 32)))) [2020-12-09 10:17:37,528 INFO L262 CegarLoopResult]: For program point L19-9(lines 19 22) no Hoare annotation was computed. [2020-12-09 10:17:37,528 INFO L258 CegarLoopResult]: At program point L19-11(line 46) the Hoare annotation is: (and (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv5 32)) (not (bvuge ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~d~0)) (bvugt ULTIMATE.start_main_~a~0 (_ bv2 32))) [2020-12-09 10:17:37,528 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:17:37,528 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 10:17:37,528 INFO L262 CegarLoopResult]: For program point L53(lines 53 70) no Hoare annotation was computed. [2020-12-09 10:17:37,528 INFO L262 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L20-2(lines 20 21) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L20-3(lines 20 21) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L47(lines 47 70) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L265 CegarLoopResult]: At program point L72(lines 26 73) the Hoare annotation is: true [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L15-1(lines 15 17) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2020-12-09 10:17:37,529 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 71) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-12-09 10:17:37,530 INFO L258 CegarLoopResult]: At program point L58-2(lines 41 71) the Hoare annotation is: (let ((.cse0 (bvadd ULTIMATE.start_main_~d~0 (_ bv4294967294 32)))) (and (= (bvadd (bvmul (bvneg (bvudiv ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (_ bv4 32)) (bvmul (bvudiv ULTIMATE.start_main_~n~0 .cse0) (_ bv4 32))) ULTIMATE.start_main_~q~0) (bvule ULTIMATE.start_main_~n~0 (_ bv5 32)) (bvule ULTIMATE.start_main_~a~0 (_ bv5 32)) (= ULTIMATE.start_main_~k~0 (bvurem ULTIMATE.start_main_~n~0 .cse0)) (not (bvuge ULTIMATE.start_main_~s~0 ULTIMATE.start_main_~d~0)) (= ULTIMATE.start_main_~r~0 (bvurem ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (= (_ bv0 32) ULTIMATE.start_main_~t~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~d~0) (bvugt ULTIMATE.start_main_~a~0 (_ bv2 32)))) [2020-12-09 10:17:37,530 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2020-12-09 10:17:37,535 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 10:17:37,539 INFO L168 Benchmark]: Toolchain (without parser) took 120361.18 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 40.3 MB in the beginning and 37.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:17:37,539 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 41.4 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:17:37,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.08 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 41.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:17:37,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.03 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 39.5 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:17:37,541 INFO L168 Benchmark]: Boogie Preprocessor took 23.56 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 37.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:17:37,541 INFO L168 Benchmark]: RCFGBuilder took 3029.00 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 37.9 MB in the beginning and 87.7 MB in the end (delta: -49.7 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-12-09 10:17:37,542 INFO L168 Benchmark]: TraceAbstraction took 117028.09 ms. Allocated memory is still 111.1 MB. Free memory was 87.1 MB in the beginning and 37.6 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:17:37,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 41.4 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.08 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 41.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.03 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 39.5 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.56 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 37.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3029.00 ms. Allocated memory was 58.7 MB in the beginning and 111.1 MB in the end (delta: 52.4 MB). Free memory was 37.9 MB in the beginning and 87.7 MB in the end (delta: -49.7 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 117028.09 ms. Allocated memory is still 111.1 MB. Free memory was 87.1 MB in the beginning and 37.6 MB in the end (delta: 49.5 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 21]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...