./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d553ea9f9bdcb2c71addc52be09760b206bf9b79 .............................................................................................................................................................. 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_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d553ea9f9bdcb2c71addc52be09760b206bf9b79 ................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:31:55,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:31:55,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:31:55,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:31:55,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:31:55,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:31:55,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:31:55,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:31:55,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:31:55,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:31:55,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:31:55,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:31:55,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:31:55,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:31:55,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:31:55,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:31:55,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:31:55,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:31:55,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:31:55,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:31:55,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:31:55,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:31:55,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:31:55,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:31:55,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:31:55,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:31:55,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:31:55,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:31:55,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:31:55,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:31:55,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:31:55,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:31:55,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:31:55,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:31:55,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:31:55,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:31:55,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:31:55,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:31:55,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:31:55,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:31:55,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:31:55,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:31:55,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:31:55,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:31:55,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:31:55,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:31:55,488 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:31:55,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:31:55,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:31:55,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:31:55,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:31:55,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:31:55,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:31:55,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:31:55,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:31:55,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:31:55,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:31:55,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:31:55,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:31:55,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:31:55,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:31:55,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:31:55,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:31:55,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:31:55,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:31:55,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:31:55,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:31:55,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:31:55,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:31:55,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:31:55,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:31:55,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d553ea9f9bdcb2c71addc52be09760b206bf9b79 [2020-11-30 01:31:55,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:31:55,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:31:55,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:31:55,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:31:55,879 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:31:55,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2020-11-30 01:31:55,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/31a336e88/f6de910a1d3542908d4a83c580dcb045/FLAG9a6417ee3 [2020-11-30 01:31:56,571 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:31:56,572 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2020-11-30 01:31:56,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/31a336e88/f6de910a1d3542908d4a83c580dcb045/FLAG9a6417ee3 [2020-11-30 01:31:56,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/31a336e88/f6de910a1d3542908d4a83c580dcb045 [2020-11-30 01:31:56,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:31:56,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:31:56,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:31:56,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:31:56,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:31:56,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:31:56" (1/1) ... [2020-11-30 01:31:56,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e809408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:31:56, skipping insertion in model container [2020-11-30 01:31:56,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:31:56" (1/1) ... [2020-11-30 01:31:56,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:31:56,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:31:57,158 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:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:706) 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:1352) 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:1045) 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:1423) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) 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) [2020-11-30 01:31:57,166 INFO L168 Benchmark]: Toolchain (without parser) took 272.49 ms. Allocated memory is still 88.1 MB. Free memory was 54.7 MB in the beginning and 66.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:57,168 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 61.5 MB in the end (delta: 29.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:31:57,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.29 ms. Allocated memory is still 88.1 MB. Free memory was 54.5 MB in the beginning and 66.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:31:57,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 61.5 MB in the end (delta: 29.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.29 ms. Allocated memory is still 88.1 MB. Free memory was 54.5 MB in the beginning and 66.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.8 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-a4ecdab [2020-11-30 01:32:00,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:32:00,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:32:00,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:32:00,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:32:00,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:32:00,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:32:00,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:32:00,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:32:00,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:32:00,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:32:00,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:32:00,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:32:00,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:32:00,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:32:00,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:32:00,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:32:00,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:32:00,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:32:00,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:32:00,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:32:00,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:32:00,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:32:00,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:32:00,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:32:00,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:32:00,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:32:00,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:32:00,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:32:00,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:32:00,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:32:00,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:32:00,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:32:00,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:32:00,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:32:00,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:32:00,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:32:00,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:32:00,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:32:00,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:32:00,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:32:00,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 01:32:00,296 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:32:00,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:32:00,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:32:00,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:32:00,299 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:32:00,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:32:00,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:32:00,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:32:00,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:32:00,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:32:00,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:32:00,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:32:00,302 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:32:00,303 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:32:00,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:32:00,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:32:00,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:32:00,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:32:00,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:32:00,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:32:00,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:32:00,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:32:00,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:32:00,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:32:00,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:32:00,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:32:00,323 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:32:00,323 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:32:00,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:32:00,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:32:00,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:32:00,324 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_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d553ea9f9bdcb2c71addc52be09760b206bf9b79 [2020-11-30 01:32:00,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:32:00,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:32:00,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:32:00,826 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:32:00,827 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:32:00,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2020-11-30 01:32:00,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/ade06b0a7/9831f8e823744799a65e579d01424d7f/FLAG80f8e077a [2020-11-30 01:32:01,592 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:32:01,593 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound10.i [2020-11-30 01:32:01,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/ade06b0a7/9831f8e823744799a65e579d01424d7f/FLAG80f8e077a [2020-11-30 01:32:01,912 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/data/ade06b0a7/9831f8e823744799a65e579d01424d7f [2020-11-30 01:32:01,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:32:01,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:32:01,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:32:01,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:32:01,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:32:01,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:32:01" (1/1) ... [2020-11-30 01:32:01,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7cc639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:01, skipping insertion in model container [2020-11-30 01:32:01,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:32:01" (1/1) ... [2020-11-30 01:32:01,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:32:01,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:32:02,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:32:02,215 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:32:02,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:32:02,314 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:32:02,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02 WrapperNode [2020-11-30 01:32:02,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:32:02,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:32:02,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:32:02,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:32:02,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:32:02,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:32:02,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:32:02,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:32:02,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... [2020-11-30 01:32:02,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:32:02,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:32:02,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:32:02,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:32:02,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/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 [2020-11-30 01:32:02,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:32:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:32:02,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:32:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:32:06,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:32:06,196 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-11-30 01:32:06,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:32:06 BoogieIcfgContainer [2020-11-30 01:32:06,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:32:06,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:32:06,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:32:06,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:32:06,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:32:01" (1/3) ... [2020-11-30 01:32:06,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bc88dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:32:06, skipping insertion in model container [2020-11-30 01:32:06,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:32:02" (2/3) ... [2020-11-30 01:32:06,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bc88dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:32:06, skipping insertion in model container [2020-11-30 01:32:06,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:32:06" (3/3) ... [2020-11-30 01:32:06,214 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound10.i [2020-11-30 01:32:06,229 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:32:06,247 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-30 01:32:06,264 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 01:32:06,318 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:32:06,320 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:32:06,320 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:32:06,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:32:06,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:32:06,321 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:32:06,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:32:06,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:32:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-30 01:32:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:32:06,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:32:06,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:32:06,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:32:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:32:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1115236137, now seen corresponding path program 1 times [2020-11-30 01:32:06,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:32:06,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762858883] [2020-11-30 01:32:06,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/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 [2020-11-30 01:32:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:32:06,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:32:06,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:32:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:32:06,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:32:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:32:06,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762858883] [2020-11-30 01:32:06,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:32:06,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:32:06,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54324347] [2020-11-30 01:32:06,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:32:06,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:32:06,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:32:06,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:32:06,950 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-11-30 01:32:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:32:06,975 INFO L93 Difference]: Finished difference Result 81 states and 114 transitions. [2020-11-30 01:32:06,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:32:06,977 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-30 01:32:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:32:06,989 INFO L225 Difference]: With dead ends: 81 [2020-11-30 01:32:06,989 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 01:32:06,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:32:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 01:32:07,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-30 01:32:07,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 01:32:07,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-11-30 01:32:07,039 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 15 [2020-11-30 01:32:07,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:32:07,040 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-11-30 01:32:07,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:32:07,040 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-11-30 01:32:07,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:32:07,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:32:07,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:32:07,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:32:07,259 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:32:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:32:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1454088159, now seen corresponding path program 1 times [2020-11-30 01:32:07,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:32:07,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67690333] [2020-11-30 01:32:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/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 [2020-11-30 01:32:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:32:08,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 01:32:08,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:32:08,650 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2020-11-30 01:32:08,670 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:32:08,903 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:32:09,018 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:32:10,778 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-30 01:32:10,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:32:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:32:12,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:32:15,700 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-11-30 01:32:18,203 WARN L860 $PredicateComparison]: unable to prove that (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)) (.cse2 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0)))))) is different from true [2020-11-30 01:32:20,546 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)) (.cse2 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0))))))) is different from true [2020-11-30 01:32:20,558 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:32:22,748 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)) (.cse2 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0))))))) is different from true [2020-11-30 01:32:24,973 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)) (.cse2 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0)))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse1) (bvmul (_ bv4 32) (bvmul .cse2 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse1 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0))))))) is different from true [2020-11-30 01:32:25,035 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:32:27,279 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (not (bvuge v_ULTIMATE.start_main_~a~0_10 (_ bv0 32))) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse1 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvurem c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10)) (.cse3 (bvudiv c_ULTIMATE.start_main_~n~0 .cse1)) (.cse2 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10)))) (bvadd (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse1) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10 .cse2)) (bvmul (_ bv4 32) (bvmul .cse3 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10)))))) (not (bvugt v_ULTIMATE.start_main_~a~0_10 (_ bv2 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv10 32))))) is different from true [2020-11-30 01:32:29,363 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (not (bvuge v_ULTIMATE.start_main_~a~0_10 (_ bv0 32))) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse1 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvurem c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10)) (.cse3 (bvudiv c_ULTIMATE.start_main_~n~0 .cse1)) (.cse2 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10)))) (bvadd (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse1) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10 .cse2)) (bvmul (_ bv4 32) (bvmul .cse3 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvneg (bvmul (bvadd (bvmul .cse3 (_ bv8 32)) (bvmul .cse2 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10)))))) (not (bvugt v_ULTIMATE.start_main_~a~0_10 (_ bv2 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv10 32))))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from true [2020-11-30 01:32:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:32:30,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67690333] [2020-11-30 01:32:30,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:32:30,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2020-11-30 01:32:30,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784996889] [2020-11-30 01:32:30,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-30 01:32:30,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:32:30,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-30 01:32:30,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=108, Unknown=6, NotChecked=150, Total=306 [2020-11-30 01:32:30,906 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 18 states. [2020-11-30 01:32:40,970 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 50 DAG size of output: 7 [2020-11-30 01:32:47,936 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 50 DAG size of output: 9 [2020-11-30 01:32:59,220 WARN L193 SmtUtils]: Spent 4.60 s on a formula simplification. DAG size of input: 52 DAG size of output: 11 [2020-11-30 01:33:06,409 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 30 [2020-11-30 01:33:09,826 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 29 [2020-11-30 01:33:19,980 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-30 01:33:23,888 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-11-30 01:33:32,229 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 01:33:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:33:44,607 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-11-30 01:33:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-30 01:33:44,627 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 15 [2020-11-30 01:33:44,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:33:44,629 INFO L225 Difference]: With dead ends: 90 [2020-11-30 01:33:44,629 INFO L226 Difference]: Without dead ends: 86 [2020-11-30 01:33:44,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 61.0s TimeCoverageRelationStatistics Valid=109, Invalid=329, Unknown=6, NotChecked=258, Total=702 [2020-11-30 01:33:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-11-30 01:33:44,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 52. [2020-11-30 01:33:44,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-30 01:33:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2020-11-30 01:33:44,648 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 15 [2020-11-30 01:33:44,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:33:44,649 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2020-11-30 01:33:44,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-30 01:33:44,649 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2020-11-30 01:33:44,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:33:44,650 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:33:44,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:33:44,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:33:44,854 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:33:44,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:33:44,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1870246562, now seen corresponding path program 1 times [2020-11-30 01:33:44,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:33:44,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708710689] [2020-11-30 01:33:44,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/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 [2020-11-30 01:33:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:33:45,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:33:45,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:33:45,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:33:45,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:33:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:33:45,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708710689] [2020-11-30 01:33:45,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:33:45,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2020-11-30 01:33:45,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481114233] [2020-11-30 01:33:45,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:33:45,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:33:45,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:33:45,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:33:45,291 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand 5 states. [2020-11-30 01:33:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:33:45,294 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2020-11-30 01:33:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:33:45,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-30 01:33:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:33:45,303 INFO L225 Difference]: With dead ends: 52 [2020-11-30 01:33:45,303 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:33:45,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:33:45,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:33:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:33:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:33:45,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:33:45,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 01:33:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:33:45,308 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:33:45,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:33:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:33:45,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:33:45,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:33:45,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:33:45,573 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,573 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-30 01:33:45,573 INFO L270 CegarLoopResult]: At program point L19-1(lines 18 24) the Hoare annotation is: false [2020-11-30 01:33:45,573 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-30 01:33:45,573 INFO L270 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: false [2020-11-30 01:33:45,573 INFO L274 CegarLoopResult]: For program point L19-4(lines 19 22) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L270 CegarLoopResult]: At program point L19-5(lines 18 24) the Hoare annotation is: false [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L270 CegarLoopResult]: At program point L19-7(line 46) the Hoare annotation is: false [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point L53(lines 53 70) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-11-30 01:33:45,574 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 21) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L20-3(lines 20 21) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,575 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L47(lines 47 70) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L277 CegarLoopResult]: At program point L72(lines 26 73) the Hoare annotation is: true [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L15-1(lines 15 17) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,576 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 71) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-11-30 01:33:45,577 INFO L270 CegarLoopResult]: At program point L58-2(lines 41 71) the Hoare annotation is: false [2020-11-30 01:33:45,577 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 01:33:45,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:33:45 BoogieIcfgContainer [2020-11-30 01:33:45,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:33:45,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:33:45,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:33:45,588 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:33:45,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:32:06" (3/4) ... [2020-11-30 01:33:45,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:33:45,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 01:33:45,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:33:45,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:33:45,613 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:33:45,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cec49c5b-5e4f-4d59-b60d-cb21dd559ea5/bin/uautomizer/witness.graphml [2020-11-30 01:33:45,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:33:45,707 INFO L168 Benchmark]: Toolchain (without parser) took 103789.50 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 57.3 MB in the beginning and 57.9 MB in the end (delta: -596.8 kB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:45,707 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 73.4 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:33:45,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.66 ms. Allocated memory is still 73.4 MB. Free memory was 57.1 MB in the beginning and 56.3 MB in the end (delta: 797.5 kB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:45,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.17 ms. Allocated memory is still 73.4 MB. Free memory was 56.2 MB in the beginning and 54.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:45,709 INFO L168 Benchmark]: Boogie Preprocessor took 42.76 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 52.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:45,709 INFO L168 Benchmark]: RCFGBuilder took 3760.53 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 33.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:45,710 INFO L168 Benchmark]: TraceAbstraction took 99386.53 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 33.2 MB in the beginning and 61.3 MB in the end (delta: -28.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:33:45,714 INFO L168 Benchmark]: Witness Printer took 117.88 ms. Allocated memory is still 92.3 MB. Free memory was 61.3 MB in the beginning and 57.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:33:45,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 73.4 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.66 ms. Allocated memory is still 73.4 MB. Free memory was 57.1 MB in the beginning and 56.3 MB in the end (delta: 797.5 kB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.17 ms. Allocated memory is still 73.4 MB. Free memory was 56.2 MB in the beginning and 54.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.76 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 52.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3760.53 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 33.7 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 99386.53 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 33.2 MB in the beginning and 61.3 MB in the end (delta: -28.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 117.88 ms. Allocated memory is still 92.3 MB. Free memory was 61.3 MB in the beginning and 57.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 99.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 73.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 132 SDslu, 151 SDs, 0 SdLazy, 159 SolverSat, 55 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 29.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 61.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 7 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 22.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 2 QuantifiedInterpolants, 11472 SizeOfPredicates, 19 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...