./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.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_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/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 460c22b2298e82c93e0c779716bcc2f68b35af6e .............................................................................................................................................................. 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_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/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 460c22b2298e82c93e0c779716bcc2f68b35af6e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:24:09,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:24:09,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:24:09,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:24:09,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:24:09,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:24:09,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:24:09,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:24:09,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:24:09,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:24:09,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:24:09,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:24:09,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:24:09,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:24:09,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:24:09,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:24:09,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:24:09,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:24:09,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:24:09,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:24:09,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:24:09,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:24:09,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:24:09,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:24:09,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:24:09,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:24:09,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:24:09,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:24:09,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:24:09,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:24:09,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:24:09,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:24:09,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:24:09,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:24:09,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:24:09,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:24:09,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:24:09,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:24:09,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:24:09,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:24:09,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:24:09,833 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:24:09,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:24:09,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:24:09,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:24:09,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:24:09,899 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:24:09,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:24:09,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:24:09,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:24:09,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:24:09,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:24:09,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:24:09,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:24:09,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:24:09,902 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:24:09,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:24:09,903 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:24:09,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:24:09,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:24:09,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:24:09,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:24:09,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:24:09,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:24:09,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:24:09,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:24:09,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:24:09,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:24:09,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:24:09,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:24:09,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:24:09,907 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_c1c8e231-b863-46a5-ae5c-2d04277efd31/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 460c22b2298e82c93e0c779716bcc2f68b35af6e [2020-11-29 18:24:10,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:24:10,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:24:10,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:24:10,307 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:24:10,309 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:24:10,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2020-11-29 18:24:10,404 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/89447b1cd/c0a89effaa27462eb4db1d83638d9996/FLAGfd22c7929 [2020-11-29 18:24:11,035 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:24:11,036 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2020-11-29 18:24:11,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/89447b1cd/c0a89effaa27462eb4db1d83638d9996/FLAGfd22c7929 [2020-11-29 18:24:11,413 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/89447b1cd/c0a89effaa27462eb4db1d83638d9996 [2020-11-29 18:24:11,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:24:11,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:24:11,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:24:11,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:24:11,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:24:11,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:11" (1/1) ... [2020-11-29 18:24:11,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c237db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:11, skipping insertion in model container [2020-11-29 18:24:11,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:11" (1/1) ... [2020-11-29 18:24:11,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:24:11,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:24:11,744 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) [2020-11-29 18:24:11,751 INFO L168 Benchmark]: Toolchain (without parser) took 330.04 ms. Allocated memory is still 90.2 MB. Free memory was 60.8 MB in the beginning and 69.9 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:24:11,754 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory was 49.7 MB in the beginning and 49.6 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:24:11,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.30 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 69.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:24:11,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 90.2 MB. Free memory was 49.7 MB in the beginning and 49.6 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.30 ms. Allocated memory is still 90.2 MB. Free memory was 60.6 MB in the beginning and 69.9 MB in the end (delta: -9.3 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-a4ecdab [2020-11-29 18:24:14,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:24:14,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:24:14,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:24:14,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:24:14,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:24:14,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:24:14,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:24:14,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:24:14,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:24:14,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:24:14,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:24:14,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:24:14,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:24:14,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:24:14,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:24:14,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:24:14,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:24:14,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:24:14,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:24:14,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:24:14,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:24:14,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:24:14,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:24:14,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:24:14,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:24:14,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:24:14,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:24:14,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:24:14,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:24:14,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:24:14,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:24:14,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:24:14,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:24:14,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:24:14,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:24:14,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:24:14,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:24:14,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:24:14,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:24:14,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:24:14,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:24:14,857 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:24:14,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:24:14,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:24:14,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:24:14,859 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:24:14,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:24:14,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:24:14,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:24:14,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:24:14,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:24:14,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:24:14,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:24:14,861 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:24:14,861 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:24:14,861 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:24:14,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:24:14,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:24:14,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:24:14,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:24:14,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:24:14,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:24:14,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:24:14,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:24:14,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:24:14,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:24:14,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:24:14,864 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:24:14,865 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:24:14,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:24:14,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:24:14,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:24:14,869 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_c1c8e231-b863-46a5-ae5c-2d04277efd31/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 460c22b2298e82c93e0c779716bcc2f68b35af6e [2020-11-29 18:24:15,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:24:15,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:24:15,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:24:15,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:24:15,417 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:24:15,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2020-11-29 18:24:15,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/88b4a1501/2aeb6a337839471d8bb5de03960d09d7/FLAG4f84a40a2 [2020-11-29 18:24:16,195 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:24:16,201 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2020-11-29 18:24:16,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/88b4a1501/2aeb6a337839471d8bb5de03960d09d7/FLAG4f84a40a2 [2020-11-29 18:24:16,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/data/88b4a1501/2aeb6a337839471d8bb5de03960d09d7 [2020-11-29 18:24:16,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:24:16,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:24:16,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:24:16,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:24:16,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:24:16,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:16,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c9b1822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16, skipping insertion in model container [2020-11-29 18:24:16,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:16,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:24:16,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:24:16,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:24:16,836 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:24:16,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:24:16,896 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:24:16,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16 WrapperNode [2020-11-29 18:24:16,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:24:16,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:24:16,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:24:16,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:24:16,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:16,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:16,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:24:17,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:24:17,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:24:17,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:24:17,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... [2020-11-29 18:24:17,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:24:17,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:24:17,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:24:17,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:24:17,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/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 [2020-11-29 18:24:17,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:24:17,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:24:17,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:24:17,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:24:20,733 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:24:20,734 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-11-29 18:24:20,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:20 BoogieIcfgContainer [2020-11-29 18:24:20,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:24:20,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:24:20,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:24:20,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:24:20,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:24:16" (1/3) ... [2020-11-29 18:24:20,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63865fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:24:20, skipping insertion in model container [2020-11-29 18:24:20,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:24:16" (2/3) ... [2020-11-29 18:24:20,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63865fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:24:20, skipping insertion in model container [2020-11-29 18:24:20,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:20" (3/3) ... [2020-11-29 18:24:20,753 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound20.i [2020-11-29 18:24:20,767 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:24:20,773 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 18:24:20,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 18:24:20,834 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:24:20,837 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:24:20,837 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:24:20,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:24:20,838 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:24:20,838 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:24:20,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:24:20,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:24:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-29 18:24:20,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:24:20,868 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:24:20,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:24:20,870 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:24:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:24:20,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1115236137, now seen corresponding path program 1 times [2020-11-29 18:24:20,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:24:20,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365273542] [2020-11-29 18:24:20,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/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 [2020-11-29 18:24:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:24:21,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 18:24:21,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:24:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:24:21,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:24:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:24:21,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365273542] [2020-11-29 18:24:21,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:24:21,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:24:21,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997353174] [2020-11-29 18:24:21,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:24:21,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:24:21,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:24:21,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:24:21,418 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-11-29 18:24:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:24:21,442 INFO L93 Difference]: Finished difference Result 81 states and 114 transitions. [2020-11-29 18:24:21,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:24:21,444 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-29 18:24:21,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:24:21,455 INFO L225 Difference]: With dead ends: 81 [2020-11-29 18:24:21,455 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 18:24:21,459 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 [2020-11-29 18:24:21,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 18:24:21,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-29 18:24:21,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 18:24:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-11-29 18:24:21,506 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 15 [2020-11-29 18:24:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:24:21,506 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-11-29 18:24:21,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:24:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-11-29 18:24:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:24:21,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:24:21,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:24:21,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:24:21,714 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:24:21,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:24:21,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1454088159, now seen corresponding path program 1 times [2020-11-29 18:24:21,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:24:21,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648463728] [2020-11-29 18:24:21,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/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 [2020-11-29 18:24:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:24:24,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 18:24:24,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:24:24,900 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2020-11-29 18:24:24,916 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:24:25,150 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2020-11-29 18:24:25,154 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:24:25,273 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:24:27,194 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 18:24:27,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:24:44,366 WARN L193 SmtUtils]: Spent 10.72 s on a formula simplification that was a NOOP. DAG size: 45 [2020-11-29 18:24:50,585 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32)) (ULTIMATE.start_main_~d~0 (_ BitVec 32))) (and (bvugt ULTIMATE.start_main_~d~0 (_ bv2 32)) (bvule ULTIMATE.start_main_~d~0 (_ bv20 32)) (not (= (bvmul (_ bv8 32) ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd ULTIMATE.start_main_~d~0 (_ bv4294967294 32)))) (let ((.cse2 (bvurem ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)) (.cse1 (bvudiv ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0)))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) ULTIMATE.start_main_~d~0)) (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) ULTIMATE.start_main_~d~0)) (bvmul (_ bv8 32) .cse2) (bvmul (_ bv4 32) (bvmul .cse1 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~d~0)) (bvmul (_ bv4 32) (bvmul .cse0 ULTIMATE.start_main_~d~0 ULTIMATE.start_main_~d~0)) (bvmul (_ bv4 32) (bvmul ULTIMATE.start_main_~d~0 (bvurem ULTIMATE.start_main_~n~0 .cse3)))))))) (bvule ULTIMATE.start_main_~n~0 (_ bv20 32)))) is different from false [2020-11-29 18:25:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:25:00,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:25:09,586 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-11-29 18:25:12,233 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 [2020-11-29 18:25:14,475 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 [2020-11-29 18:25:14,479 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:16,705 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 [2020-11-29 18:25:19,114 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 [2020-11-29 18:25:19,132 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:21,423 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 (_ bv20 32))))) is different from true [2020-11-29 18:25:23,490 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 (_ bv20 32))))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from true [2020-11-29 18:25:27,621 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:27,624 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:27,639 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:27,642 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:27,649 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:27,651 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:25:31,789 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0_10 (_ BitVec 32)) (v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (not (bvuge v_ULTIMATE.start_main_~a~0_10 (_ bv0 32))) (not (bvule v_ULTIMATE.start_main_~n~0_10 (_ bv20 32))) (not (bvugt v_ULTIMATE.start_main_~a~0_10 (_ bv2 32))) (not (bvuge v_ULTIMATE.start_main_~n~0_10 (_ bv0 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv20 32))) (= (let ((.cse3 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvurem v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10)) (.cse2 (bvneg (bvudiv v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10))) (.cse1 (bvudiv v_ULTIMATE.start_main_~n~0_10 .cse3))) (bvadd (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) 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 .cse1)) (bvmul (_ bv4 32) (bvmul .cse2 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul (bvurem v_ULTIMATE.start_main_~n~0_10 .cse3) v_ULTIMATE.start_main_~a~0_10)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10))))) (bvmul (_ bv8 32) v_ULTIMATE.start_main_~n~0_10)))) is different from false [2020-11-29 18:25:33,826 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0_10 (_ BitVec 32)) (v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (not (bvuge v_ULTIMATE.start_main_~a~0_10 (_ bv0 32))) (not (bvule v_ULTIMATE.start_main_~n~0_10 (_ bv20 32))) (not (bvugt v_ULTIMATE.start_main_~a~0_10 (_ bv2 32))) (not (bvuge v_ULTIMATE.start_main_~n~0_10 (_ bv0 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv20 32))) (= (let ((.cse3 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvurem v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10)) (.cse2 (bvneg (bvudiv v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10))) (.cse1 (bvudiv v_ULTIMATE.start_main_~n~0_10 .cse3))) (bvadd (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) 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 .cse1)) (bvmul (_ bv4 32) (bvmul .cse2 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul (bvurem v_ULTIMATE.start_main_~n~0_10 .cse3) v_ULTIMATE.start_main_~a~0_10)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10))))) (bvmul (_ bv8 32) v_ULTIMATE.start_main_~n~0_10)))) is different from true [2020-11-29 18:25:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:25:33,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648463728] [2020-11-29 18:25:33,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:25:33,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 20 [2020-11-29 18:25:33,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867609481] [2020-11-29 18:25:33,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-29 18:25:33,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:25:33,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-29 18:25:33,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=107, Unknown=13, NotChecked=216, Total=380 [2020-11-29 18:25:33,838 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 20 states. [2020-11-29 18:25:49,266 WARN L193 SmtUtils]: Spent 12.84 s on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 18:26:13,419 WARN L193 SmtUtils]: Spent 11.22 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-11-29 18:26:47,166 WARN L193 SmtUtils]: Spent 22.48 s on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-11-29 18:27:05,811 WARN L193 SmtUtils]: Spent 10.64 s on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-11-29 18:27:28,168 WARN L193 SmtUtils]: Spent 14.48 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-11-29 18:27:47,744 WARN L193 SmtUtils]: Spent 9.91 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-11-29 18:27:57,024 WARN L193 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 39 [2020-11-29 18:28:14,206 WARN L193 SmtUtils]: Spent 15.85 s on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2020-11-29 18:28:22,255 WARN L193 SmtUtils]: Spent 3.96 s on a formula simplification that was a NOOP. DAG size: 43 [2020-11-29 18:28:38,144 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 18:28:45,296 WARN L193 SmtUtils]: Spent 5.39 s on a formula simplification. DAG size of input: 62 DAG size of output: 29 [2020-11-29 18:28:59,431 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 18:29:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:29:18,869 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-11-29 18:29:18,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 18:29:18,893 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 15 [2020-11-29 18:29:18,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:29:18,896 INFO L225 Difference]: With dead ends: 90 [2020-11-29 18:29:18,896 INFO L226 Difference]: Without dead ends: 86 [2020-11-29 18:29:18,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 204.0s TimeCoverageRelationStatistics Valid=132, Invalid=478, Unknown=22, NotChecked=424, Total=1056 [2020-11-29 18:29:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-11-29 18:29:18,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 52. [2020-11-29 18:29:18,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:29:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2020-11-29 18:29:18,913 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 15 [2020-11-29 18:29:18,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:29:18,914 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2020-11-29 18:29:18,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-29 18:29:18,914 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2020-11-29 18:29:18,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:29:18,915 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:29:18,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:29:19,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:29:19,123 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:29:19,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:29:19,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1870246562, now seen corresponding path program 1 times [2020-11-29 18:29:19,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:29:19,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988951738] [2020-11-29 18:29:19,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/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 [2020-11-29 18:29:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:29:19,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:29:19,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:29:19,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:29:19,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:29:19,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:29:19,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988951738] [2020-11-29 18:29:19,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:29:19,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2020-11-29 18:29:19,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710785312] [2020-11-29 18:29:19,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:29:19,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:29:19,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:29:19,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:29:19,664 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand 5 states. [2020-11-29 18:29:19,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:29:19,668 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2020-11-29 18:29:19,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:29:19,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-29 18:29:19,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:29:19,669 INFO L225 Difference]: With dead ends: 52 [2020-11-29 18:29:19,669 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:29:19,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:29:19,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:29:19,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:29:19,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:29:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:29:19,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-29 18:29:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:29:19,671 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:29:19,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:29:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:29:19,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:29:19,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:29:19,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:29:19,948 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,948 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:29:19,949 INFO L270 CegarLoopResult]: At program point L19-1(lines 18 24) the Hoare annotation is: false [2020-11-29 18:29:19,949 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:29:19,949 INFO L270 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: false [2020-11-29 18:29:19,949 INFO L274 CegarLoopResult]: For program point L19-4(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:29:19,949 INFO L270 CegarLoopResult]: At program point L19-5(lines 18 24) the Hoare annotation is: false [2020-11-29 18:29:19,949 INFO L274 CegarLoopResult]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:29:19,949 INFO L270 CegarLoopResult]: At program point L19-7(line 46) the Hoare annotation is: false [2020-11-29 18:29:19,949 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L53(lines 53 70) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L20-3(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,950 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,951 INFO L274 CegarLoopResult]: For program point L47(lines 47 70) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L277 CegarLoopResult]: At program point L72(lines 26 73) the Hoare annotation is: true [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point L15-1(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,952 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 71) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-11-29 18:29:19,953 INFO L270 CegarLoopResult]: At program point L58-2(lines 41 71) the Hoare annotation is: false [2020-11-29 18:29:19,953 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:29:19,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:29:19 BoogieIcfgContainer [2020-11-29 18:29:19,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:29:19,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:29:19,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:29:19,968 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:29:19,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:24:20" (3/4) ... [2020-11-29 18:29:19,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:29:19,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 18:29:19,995 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:29:19,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:29:19,996 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:29:20,078 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1c8e231-b863-46a5-ae5c-2d04277efd31/bin/uautomizer/witness.graphml [2020-11-29 18:29:20,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:29:20,079 INFO L168 Benchmark]: Toolchain (without parser) took 303547.43 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 37.5 MB in the beginning and 37.7 MB in the end (delta: -189.6 kB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:29:20,080 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 39.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:29:20,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.19 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 39.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:29:20,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.49 ms. Allocated memory is still 58.7 MB. Free memory was 39.3 MB in the beginning and 41.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-11-29 18:29:20,082 INFO L168 Benchmark]: Boogie Preprocessor took 87.21 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 39.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:29:20,082 INFO L168 Benchmark]: RCFGBuilder took 3649.77 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 39.9 MB in the beginning and 51.3 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:29:20,083 INFO L168 Benchmark]: TraceAbstraction took 299223.96 ms. Allocated memory is still 73.4 MB. Free memory was 51.0 MB in the beginning and 41.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:29:20,084 INFO L168 Benchmark]: Witness Printer took 111.80 ms. Allocated memory is still 73.4 MB. Free memory was 41.2 MB in the beginning and 37.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:29:20,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 39.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.19 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 39.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.49 ms. Allocated memory is still 58.7 MB. Free memory was 39.3 MB in the beginning and 41.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.21 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 39.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3649.77 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 39.9 MB in the beginning and 51.3 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 299223.96 ms. Allocated memory is still 73.4 MB. Free memory was 51.0 MB in the beginning and 41.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 111.80 ms. Allocated memory is still 73.4 MB. Free memory was 41.2 MB in the beginning and 37.7 MB in the end (delta: 3.6 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: 299.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 225.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 132 SDslu, 170 SDs, 0 SdLazy, 162 SolverSat, 53 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 65.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 204.1s 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, 3.5s SatisfiabilityAnalysisTime, 69.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 88 ConstructedInterpolants, 7 QuantifiedInterpolants, 16876 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...