./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.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_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/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 3b3c91331dd293a91c7522cbdf36026742c9d64d .............................................................................................................................................................. 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_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i -s /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/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 3b3c91331dd293a91c7522cbdf36026742c9d64d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:53:28,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:53:28,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:53:28,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:53:28,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:53:28,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:53:28,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:53:28,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:53:28,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:53:28,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:53:28,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:53:28,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:53:28,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:53:28,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:53:28,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:53:28,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:53:28,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:53:28,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:53:28,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:53:28,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:53:28,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:53:28,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:53:28,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:53:28,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:53:28,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:53:28,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:53:28,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:53:28,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:53:28,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:53:28,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:53:28,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:53:28,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:53:28,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:53:28,859 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:53:28,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:53:28,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:53:28,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:53:28,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:53:28,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:53:28,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:53:28,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:53:28,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:53:28,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:53:28,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:53:28,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:53:28,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:53:28,896 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:53:28,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:53:28,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:53:28,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:53:28,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:53:28,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:53:28,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:53:28,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:53:28,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:53:28,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:53:28,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:53:28,900 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:53:28,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:53:28,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:53:28,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:53:28,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:53:28,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:53:28,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:53:28,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:53:28,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:53:28,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:53:28,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:53:28,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:53:28,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:53:28,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:53:28,904 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_99412bc5-bd88-4c22-8b0d-4219c533c412/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b3c91331dd293a91c7522cbdf36026742c9d64d [2020-11-29 18:53:29,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:53:29,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:53:29,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:53:29,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:53:29,210 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:53:29,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2020-11-29 18:53:29,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/8e4073045/72706f2cb0cd4ed7b0241b5fde97659d/FLAGc52062b09 [2020-11-29 18:53:29,762 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:53:29,763 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2020-11-29 18:53:29,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/8e4073045/72706f2cb0cd4ed7b0241b5fde97659d/FLAGc52062b09 [2020-11-29 18:53:30,133 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/8e4073045/72706f2cb0cd4ed7b0241b5fde97659d [2020-11-29 18:53:30,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:53:30,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:53:30,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:30,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:53:30,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:53:30,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:30" (1/1) ... [2020-11-29 18:53:30,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf8fcd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:30, skipping insertion in model container [2020-11-29 18:53:30,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:30" (1/1) ... [2020-11-29 18:53:30,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:53:30,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:53:30,349 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 18:53:30,354 INFO L168 Benchmark]: Toolchain (without parser) took 211.77 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 66.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:30,355 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 59.2 MB in the beginning and 59.2 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:53:30,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.43 ms. Allocated memory is still 86.0 MB. Free memory was 53.8 MB in the beginning and 66.2 MB in the end (delta: -12.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:53:30,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory was 59.2 MB in the beginning and 59.2 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 208.43 ms. Allocated memory is still 86.0 MB. Free memory was 53.8 MB in the beginning and 66.2 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 [2020-11-29 18:53:32,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:53:32,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:53:32,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:53:32,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:53:32,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:53:32,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:53:32,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:53:32,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:53:32,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:53:32,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:53:32,923 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:53:32,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:53:32,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:53:32,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:53:32,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:53:32,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:53:32,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:53:32,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:53:32,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:53:32,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:53:32,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:53:32,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:53:32,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:53:32,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:53:32,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:53:32,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:53:32,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:53:32,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:53:32,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:53:32,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:53:32,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:53:32,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:53:32,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:53:32,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:53:32,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:53:32,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:53:32,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:53:32,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:53:32,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:53:32,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:53:32,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 18:53:33,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:53:33,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:53:33,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:53:33,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:53:33,018 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:53:33,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:53:33,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:53:33,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:53:33,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:53:33,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:53:33,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:53:33,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:53:33,021 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 18:53:33,022 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 18:53:33,022 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:53:33,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:53:33,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:53:33,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:53:33,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:53:33,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:53:33,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:53:33,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:53:33,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:53:33,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:53:33,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:53:33,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:53:33,025 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 18:53:33,025 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 18:53:33,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:53:33,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:53:33,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 18:53:33,026 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_99412bc5-bd88-4c22-8b0d-4219c533c412/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b3c91331dd293a91c7522cbdf36026742c9d64d [2020-11-29 18:53:33,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:53:33,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:53:33,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:53:33,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:53:33,559 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:53:33,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2020-11-29 18:53:33,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/ff722928f/590b1ea01a4b4819a2472c28617a0a8b/FLAGc7a90028d [2020-11-29 18:53:34,209 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:53:34,209 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound50.i [2020-11-29 18:53:34,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/ff722928f/590b1ea01a4b4819a2472c28617a0a8b/FLAGc7a90028d [2020-11-29 18:53:34,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/data/ff722928f/590b1ea01a4b4819a2472c28617a0a8b [2020-11-29 18:53:34,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:53:34,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:53:34,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:34,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:53:34,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:53:34,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300c15d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34, skipping insertion in model container [2020-11-29 18:53:34,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:53:34,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:53:34,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:34,790 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:53:34,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:53:34,844 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:53:34,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34 WrapperNode [2020-11-29 18:53:34,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:53:34,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:34,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:53:34,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:53:34,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:53:34,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:53:34,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:53:34,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:53:34,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:34,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:35,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:35,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:35,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... [2020-11-29 18:53:35,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:53:35,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:53:35,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:53:35,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:53:35,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/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 18:53:35,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 18:53:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:53:35,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:53:35,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:53:38,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:53:38,754 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-11-29 18:53:38,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:38 BoogieIcfgContainer [2020-11-29 18:53:38,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:53:38,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:53:38,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:53:38,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:53:38,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:53:34" (1/3) ... [2020-11-29 18:53:38,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1253ae44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:53:38, skipping insertion in model container [2020-11-29 18:53:38,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:53:34" (2/3) ... [2020-11-29 18:53:38,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1253ae44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:53:38, skipping insertion in model container [2020-11-29 18:53:38,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:38" (3/3) ... [2020-11-29 18:53:38,766 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound50.i [2020-11-29 18:53:38,777 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:53:38,782 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-29 18:53:38,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-29 18:53:38,821 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:53:38,821 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:53:38,821 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:53:38,822 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:53:38,822 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:53:38,822 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:53:38,822 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:53:38,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:53:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-29 18:53:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:53:38,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:53:38,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:38,845 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:53:38,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:38,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1115236137, now seen corresponding path program 1 times [2020-11-29 18:53:38,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:53:38,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379278415] [2020-11-29 18:53:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/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 18:53:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:39,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 18:53:39,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:39,446 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 18:53:39,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:53:39,460 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 18:53:39,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379278415] [2020-11-29 18:53:39,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:53:39,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 18:53:39,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563272086] [2020-11-29 18:53:39,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 18:53:39,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:53:39,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 18:53:39,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 18:53:39,509 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-11-29 18:53:39,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:53:39,537 INFO L93 Difference]: Finished difference Result 81 states and 114 transitions. [2020-11-29 18:53:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:53:39,539 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-29 18:53:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:53:39,551 INFO L225 Difference]: With dead ends: 81 [2020-11-29 18:53:39,552 INFO L226 Difference]: Without dead ends: 38 [2020-11-29 18:53:39,556 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 18:53:39,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-29 18:53:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-29 18:53:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 18:53:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-11-29 18:53:39,601 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 15 [2020-11-29 18:53:39,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:53:39,602 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-11-29 18:53:39,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 18:53:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-11-29 18:53:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 18:53:39,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:53:39,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:53:39,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 18:53:39,826 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:53:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:53:39,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1454088159, now seen corresponding path program 1 times [2020-11-29 18:53:39,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:53:39,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627592535] [2020-11-29 18:53:39,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/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 18:53:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:53:54,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 18:53:54,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:53:54,836 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2020-11-29 18:53:54,858 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:53:54,987 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:53:55,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:53:56,590 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 18:53:56,634 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 18:54:10,946 WARN L193 SmtUtils]: Spent 11.22 s on a formula simplification that was a NOOP. DAG size: 45 [2020-11-29 18:54:17,173 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32)) (ULTIMATE.start_main_~d~0 (_ BitVec 32))) (and (bvule ULTIMATE.start_main_~n~0 (_ bv50 32)) (bvugt ULTIMATE.start_main_~d~0 (_ bv2 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_~d~0 (_ bv50 32)))) is different from false [2020-11-29 18:54:19,201 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32)) (ULTIMATE.start_main_~d~0 (_ BitVec 32))) (and (bvule ULTIMATE.start_main_~n~0 (_ bv50 32)) (bvugt ULTIMATE.start_main_~d~0 (_ bv2 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_~d~0 (_ bv50 32)))) is different from true [2020-11-29 18:54:27,486 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 18:54:27,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:54:34,072 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-11-29 18:54:36,352 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 18:54:38,819 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 18:54:38,823 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:41,093 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 18:54:43,283 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 18:54:43,302 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:45,612 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 (_ bv50 32))))) is different from true [2020-11-29 18:54:47,685 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 (_ bv50 32))))) (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) is different from true [2020-11-29 18:54:51,817 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:51,821 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:51,828 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:51,832 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:51,837 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:51,841 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 18:54:55,975 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 (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_~n~0_10 (_ bv50 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv50 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 18:54:58,038 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 (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_~n~0_10 (_ bv50 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv50 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 18:54:58,043 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 18:54:58,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627592535] [2020-11-29 18:54:58,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:54:58,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 20 [2020-11-29 18:54:58,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476897665] [2020-11-29 18:54:58,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-29 18:54:58,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:54:58,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-29 18:54:58,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=108, Unknown=12, NotChecked=216, Total=380 [2020-11-29 18:54:58,050 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 20 states. [2020-11-29 18:55:17,070 WARN L193 SmtUtils]: Spent 16.45 s on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 18:55:51,404 WARN L193 SmtUtils]: Spent 17.45 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-11-29 18:56:25,458 WARN L193 SmtUtils]: Spent 23.66 s on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-11-29 18:56:44,560 WARN L193 SmtUtils]: Spent 11.25 s on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-11-29 18:57:06,186 WARN L193 SmtUtils]: Spent 13.95 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-11-29 18:57:23,977 WARN L193 SmtUtils]: Spent 10.65 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2020-11-29 18:57:34,797 WARN L193 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 39 [2020-11-29 18:57:52,203 WARN L193 SmtUtils]: Spent 16.06 s on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2020-11-29 18:58:00,090 WARN L193 SmtUtils]: Spent 3.92 s on a formula simplification that was a NOOP. DAG size: 43 [2020-11-29 18:58:50,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:50,587 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2020-11-29 18:58:50,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 18:58:50,607 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 15 [2020-11-29 18:58:50,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:50,611 INFO L225 Difference]: With dead ends: 94 [2020-11-29 18:58:50,611 INFO L226 Difference]: Without dead ends: 90 [2020-11-29 18:58:50,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 201.6s TimeCoverageRelationStatistics Valid=106, Invalid=368, Unknown=20, NotChecked=376, Total=870 [2020-11-29 18:58:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-29 18:58:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 40. [2020-11-29 18:58:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 18:58:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-11-29 18:58:50,623 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 15 [2020-11-29 18:58:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:50,624 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-11-29 18:58:50,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-29 18:58:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-11-29 18:58:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 18:58:50,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:58:50,625 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 18:58:50,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 18:58:50,841 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:58:50,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:58:50,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1870246562, now seen corresponding path program 1 times [2020-11-29 18:58:50,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 18:58:50,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425899249] [2020-11-29 18:58:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/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 18:58:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:58:51,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:58:51,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:58:51,188 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 18:58:51,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 18:58:51,223 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 18:58:51,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425899249] [2020-11-29 18:58:51,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:58:51,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 5 [2020-11-29 18:58:51,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541979139] [2020-11-29 18:58:51,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 18:58:51,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 18:58:51,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:58:51,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:58:51,226 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 5 states. [2020-11-29 18:58:51,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:58:51,227 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-11-29 18:58:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 18:58:51,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-29 18:58:51,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:58:51,228 INFO L225 Difference]: With dead ends: 40 [2020-11-29 18:58:51,228 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:58:51,229 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 [2020-11-29 18:58:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:58:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:58:51,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:58:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:58:51,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-29 18:58:51,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:58:51,230 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:58:51,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 18:58:51,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:58:51,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:58:51,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 18:58:51,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:58:51,478 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,478 INFO L274 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:58:51,478 INFO L270 CegarLoopResult]: At program point L19-1(lines 18 24) the Hoare annotation is: false [2020-11-29 18:58:51,478 INFO L274 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L270 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: false [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point L19-4(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L270 CegarLoopResult]: At program point L19-5(lines 18 24) the Hoare annotation is: false [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L270 CegarLoopResult]: At program point L19-7(line 46) the Hoare annotation is: false [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point L53(lines 53 70) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:58:51,479 INFO L274 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L20-3(lines 20 21) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-8(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-10(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-12(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,480 INFO L274 CegarLoopResult]: For program point L12-14(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L47(lines 47 70) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L277 CegarLoopResult]: At program point L72(lines 26 73) the Hoare annotation is: true [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L15-1(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L15-3(lines 15 17) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,481 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 71) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2020-11-29 18:58:51,482 INFO L270 CegarLoopResult]: At program point L58-2(lines 41 71) the Hoare annotation is: false [2020-11-29 18:58:51,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:58:51,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:58:51 BoogieIcfgContainer [2020-11-29 18:58:51,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:58:51,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:58:51,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:58:51,498 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:58:51,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:53:38" (3/4) ... [2020-11-29 18:58:51,502 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:58:51,519 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 18:58:51,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:58:51,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:58:51,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:58:51,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_99412bc5-bd88-4c22-8b0d-4219c533c412/bin/uautomizer/witness.graphml [2020-11-29 18:58:51,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:58:51,589 INFO L168 Benchmark]: Toolchain (without parser) took 317064.55 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.2 MB in the beginning and 37.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:51,590 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory was 46.3 MB in the beginning and 46.2 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:58:51,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.37 ms. Allocated memory is still 65.0 MB. Free memory was 45.0 MB in the beginning and 33.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:51,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.24 ms. Allocated memory is still 65.0 MB. Free memory was 33.1 MB in the beginning and 47.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:51,591 INFO L168 Benchmark]: Boogie Preprocessor took 68.76 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 45.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:58:51,592 INFO L168 Benchmark]: RCFGBuilder took 3712.27 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.3 MB in the beginning and 60.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:51,592 INFO L168 Benchmark]: TraceAbstraction took 312740.05 ms. Allocated memory is still 81.8 MB. Free memory was 60.5 MB in the beginning and 42.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:51,592 INFO L168 Benchmark]: Witness Printer took 90.59 ms. Allocated memory is still 81.8 MB. Free memory was 41.3 MB in the beginning and 37.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:58:51,595 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory was 46.3 MB in the beginning and 46.2 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.37 ms. Allocated memory is still 65.0 MB. Free memory was 45.0 MB in the beginning and 33.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.24 ms. Allocated memory is still 65.0 MB. Free memory was 33.1 MB in the beginning and 47.1 MB in the end (delta: -14.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.76 ms. Allocated memory is still 65.0 MB. Free memory was 47.1 MB in the beginning and 45.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3712.27 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 45.3 MB in the beginning and 60.8 MB in the end (delta: -15.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 312740.05 ms. Allocated memory is still 81.8 MB. Free memory was 60.5 MB in the beginning and 42.0 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * Witness Printer took 90.59 ms. Allocated memory is still 81.8 MB. Free memory was 41.3 MB in the beginning and 37.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 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: 312.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 232.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 95 SDslu, 204 SDs, 0 SdLazy, 160 SolverSat, 33 SolverUnsat, 25 SolverUnknown, 0 SolverNotchecked, 70.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 201.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, 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, 50 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, 15.3s SatisfiabilityAnalysisTime, 63.6s 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...