./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c028dc478ad08c52f1db2e76a15a3094442b18a8 ....................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c028dc478ad08c52f1db2e76a15a3094442b18a8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:02:22,305 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:02:22,306 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:02:22,312 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:02:22,312 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:02:22,313 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:02:22,314 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:02:22,315 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:02:22,316 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:02:22,317 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:02:22,317 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:02:22,318 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:02:22,318 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:02:22,320 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:02:22,321 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:02:22,321 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:02:22,321 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:02:22,323 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:02:22,324 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:02:22,324 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:02:22,325 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:02:22,326 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:02:22,327 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:02:22,327 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:02:22,328 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:02:22,328 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:02:22,329 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:02:22,329 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:02:22,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:02:22,330 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:02:22,331 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:02:22,331 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:02:22,331 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:02:22,331 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:02:22,332 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:02:22,332 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:02:22,333 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 13:02:22,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:02:22,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:02:22,340 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:02:22,340 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:02:22,340 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:02:22,340 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:02:22,341 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:02:22,341 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:02:22,341 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:02:22,341 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:02:22,341 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:02:22,341 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:02:22,341 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:02:22,342 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:02:22,342 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:02:22,342 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:02:22,342 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:02:22,342 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:02:22,342 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:02:22,342 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:02:22,343 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:02:22,343 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:02:22,344 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:02:22,344 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/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(__VERIFIER_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 -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2018-11-10 13:02:22,367 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:02:22,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:02:22,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:02:22,381 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:02:22,381 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:02:22,381 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-10 13:02:22,425 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/ea4696b58/0a8badc6f2d94376b8c025b65c44d848/FLAGcc9a39ae9 [2018-11-10 13:02:22,806 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:02:22,807 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-10 13:02:22,810 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/ea4696b58/0a8badc6f2d94376b8c025b65c44d848/FLAGcc9a39ae9 [2018-11-10 13:02:22,821 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/ea4696b58/0a8badc6f2d94376b8c025b65c44d848 [2018-11-10 13:02:22,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:02:22,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:02:22,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:22,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:02:22,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:02:22,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:22" (1/1) ... [2018-11-10 13:02:22,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610dd446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:22, skipping insertion in model container [2018-11-10 13:02:22,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:22" (1/1) ... [2018-11-10 13:02:22,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:02:22,851 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:02:22,949 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueInteger(TypeSizes.java:391) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:179) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleBitshiftOperation(CHandler.java:3728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:882) 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:2169) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:662) 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:663) 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:1300) 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:960) 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:364) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) 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:3316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:537) 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:188) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 13:02:22,951 INFO L168 Benchmark]: Toolchain (without parser) took 127.39 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 953.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:22,953 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:22,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.51 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 953.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:22,955 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.51 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 953.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:02:24,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:02:24,167 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:02:24,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:02:24,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:02:24,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:02:24,177 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:02:24,178 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:02:24,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:02:24,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:02:24,181 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:02:24,181 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:02:24,182 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:02:24,182 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:02:24,183 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:02:24,183 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:02:24,184 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:02:24,185 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:02:24,187 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:02:24,188 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:02:24,189 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:02:24,189 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:02:24,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:02:24,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:02:24,191 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:02:24,192 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:02:24,193 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:02:24,193 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:02:24,194 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:02:24,194 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:02:24,195 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:02:24,195 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:02:24,195 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:02:24,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:02:24,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:02:24,196 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:02:24,197 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 13:02:24,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:02:24,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:02:24,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:02:24,208 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:02:24,208 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:02:24,208 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:02:24,208 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:02:24,209 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:02:24,209 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:02:24,209 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:02:24,209 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:02:24,209 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:02:24,209 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:02:24,209 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:02:24,210 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:02:24,210 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:02:24,210 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:02:24,210 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:02:24,210 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:02:24,210 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:02:24,210 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:02:24,211 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:02:24,211 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:02:24,211 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:02:24,211 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:02:24,211 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:02:24,211 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:02:24,211 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 13:02:24,212 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:02:24,212 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:02:24,212 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:02:24,212 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/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(__VERIFIER_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 -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2018-11-10 13:02:24,243 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:02:24,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:02:24,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:02:24,256 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:02:24,256 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:02:24,256 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-10 13:02:24,300 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/71921194d/8f0f35c01e6d4adfbc669e2d7918c6ee/FLAGf66036d20 [2018-11-10 13:02:24,619 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:02:24,619 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/sv-benchmarks/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-11-10 13:02:24,623 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/71921194d/8f0f35c01e6d4adfbc669e2d7918c6ee/FLAGf66036d20 [2018-11-10 13:02:24,631 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/data/71921194d/8f0f35c01e6d4adfbc669e2d7918c6ee [2018-11-10 13:02:24,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:02:24,633 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:02:24,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:24,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:02:24,636 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:02:24,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccc2d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24, skipping insertion in model container [2018-11-10 13:02:24,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:02:24,657 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:02:24,782 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:02:24,785 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:02:24,799 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:02:24,810 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:02:24,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24 WrapperNode [2018-11-10 13:02:24,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:24,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:02:24,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:02:24,811 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:02:24,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... [2018-11-10 13:02:24,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:02:24,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:02:24,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:02:24,837 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:02:24,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/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 [2018-11-10 13:02:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:02:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:02:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 13:02:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2018-11-10 13:02:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:02:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:02:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:02:25,040 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:02:25,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:25 BoogieIcfgContainer [2018-11-10 13:02:25,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:02:25,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:02:25,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:02:25,043 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:02:25,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:02:24" (1/3) ... [2018-11-10 13:02:25,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc08aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:25, skipping insertion in model container [2018-11-10 13:02:25,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:24" (2/3) ... [2018-11-10 13:02:25,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc08aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:25, skipping insertion in model container [2018-11-10 13:02:25,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:25" (3/3) ... [2018-11-10 13:02:25,046 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus_true-unreach-call_true-no-overflow.i [2018-11-10 13:02:25,054 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:02:25,060 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:02:25,072 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:02:25,089 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:02:25,089 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:02:25,090 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:02:25,090 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:02:25,090 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:02:25,090 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:02:25,090 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:02:25,090 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:02:25,090 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:02:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 13:02:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 13:02:25,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:25,109 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:25,110 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:25,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:25,113 INFO L82 PathProgramCache]: Analyzing trace with hash 100671106, now seen corresponding path program 1 times [2018-11-10 13:02:25,116 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:25,116 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:25,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:25,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:25,165 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:02:25,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:25,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:02:25,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:02:25,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:02:25,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:02:25,180 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2018-11-10 13:02:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:25,197 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2018-11-10 13:02:25,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:02:25,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-10 13:02:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:25,204 INFO L225 Difference]: With dead ends: 42 [2018-11-10 13:02:25,204 INFO L226 Difference]: Without dead ends: 17 [2018-11-10 13:02:25,206 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:02:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-10 13:02:25,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 13:02:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 13:02:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-10 13:02:25,228 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2018-11-10 13:02:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:25,228 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-10 13:02:25,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:02:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-10 13:02:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 13:02:25,229 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:25,229 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:25,229 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:25,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash 123107113, now seen corresponding path program 1 times [2018-11-10 13:02:25,230 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:25,230 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:25,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:25,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:25,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:25,477 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:02:25,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:25,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 13:02:25,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 13:02:25,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 13:02:25,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:02:25,486 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 7 states. [2018-11-10 13:02:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:25,591 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-10 13:02:25,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 13:02:25,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-10 13:02:25,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:25,595 INFO L225 Difference]: With dead ends: 26 [2018-11-10 13:02:25,595 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 13:02:25,595 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 13:02:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 13:02:25,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-10 13:02:25,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 13:02:25,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-10 13:02:25,601 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 13 [2018-11-10 13:02:25,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:25,602 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-10 13:02:25,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 13:02:25,602 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 13:02:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 13:02:25,602 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:25,602 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:25,603 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:25,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:25,603 INFO L82 PathProgramCache]: Analyzing trace with hash 124954155, now seen corresponding path program 1 times [2018-11-10 13:02:25,603 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:25,603 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:25,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:25,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:26,090 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:02:26,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:26,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 13:02:26,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 13:02:26,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 13:02:26,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 13:02:26,093 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 8 states. [2018-11-10 13:02:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:26,186 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-11-10 13:02:26,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:02:26,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-10 13:02:26,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:26,187 INFO L225 Difference]: With dead ends: 25 [2018-11-10 13:02:26,187 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 13:02:26,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:02:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 13:02:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 13:02:26,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 13:02:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 13:02:26,192 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2018-11-10 13:02:26,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:26,193 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 13:02:26,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 13:02:26,193 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 13:02:26,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 13:02:26,193 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:26,193 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:26,194 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:26,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:26,194 INFO L82 PathProgramCache]: Analyzing trace with hash 574491242, now seen corresponding path program 1 times [2018-11-10 13:02:26,194 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:26,194 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:26,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:26,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:26,248 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:02:26,249 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:26,249 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:02:26,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:02:26,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:02:26,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:02:26,250 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2018-11-10 13:02:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:26,280 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2018-11-10 13:02:26,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:02:26,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-10 13:02:26,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:26,281 INFO L225 Difference]: With dead ends: 32 [2018-11-10 13:02:26,281 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 13:02:26,282 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:02:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 13:02:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 13:02:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 13:02:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-10 13:02:26,287 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2018-11-10 13:02:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:26,287 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-10 13:02:26,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:02:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 13:02:26,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 13:02:26,288 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:26,288 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:26,288 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:26,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:26,288 INFO L82 PathProgramCache]: Analyzing trace with hash 327394640, now seen corresponding path program 1 times [2018-11-10 13:02:26,288 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:26,289 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:26,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:26,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:26,544 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 13:02:29,683 WARN L179 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-10 13:02:32,043 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-10 13:02:35,392 WARN L179 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 16 [2018-11-10 13:02:37,491 WARN L179 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 20 [2018-11-10 13:02:37,986 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-10 13:02:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:38,013 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:02:38,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 14 [2018-11-10 13:02:38,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-10 13:02:38,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-10 13:02:38,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=136, Unknown=3, NotChecked=0, Total=182 [2018-11-10 13:02:38,014 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 14 states. [2018-11-10 13:02:39,054 WARN L179 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-10 13:02:40,247 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-10 13:02:40,810 WARN L179 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-10 13:02:40,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:40,866 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2018-11-10 13:02:40,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:02:40,866 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 20 [2018-11-10 13:02:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:40,867 INFO L225 Difference]: With dead ends: 37 [2018-11-10 13:02:40,867 INFO L226 Difference]: Without dead ends: 24 [2018-11-10 13:02:40,867 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=81, Invalid=222, Unknown=3, NotChecked=0, Total=306 [2018-11-10 13:02:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-10 13:02:40,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-11-10 13:02:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 13:02:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-10 13:02:40,873 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2018-11-10 13:02:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:40,873 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-10 13:02:40,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-10 13:02:40,873 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-10 13:02:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:02:40,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:40,874 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:40,874 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:40,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:40,874 INFO L82 PathProgramCache]: Analyzing trace with hash -909238602, now seen corresponding path program 2 times [2018-11-10 13:02:40,874 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:40,875 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:40,886 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 13:02:41,051 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 13:02:41,051 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 13:02:41,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:02:41,232 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:02:41,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:41,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 13:02:41,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 13:02:41,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 13:02:41,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-10 13:02:41,235 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 8 states. [2018-11-10 13:02:41,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:41,321 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-10 13:02:41,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:02:41,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-11-10 13:02:41,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:41,322 INFO L225 Difference]: With dead ends: 28 [2018-11-10 13:02:41,322 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 13:02:41,322 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:02:41,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 13:02:41,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 13:02:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 13:02:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-10 13:02:41,326 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 22 [2018-11-10 13:02:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:41,327 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-10 13:02:41,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 13:02:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-10 13:02:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:02:41,328 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:41,328 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:41,328 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:41,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:41,328 INFO L82 PathProgramCache]: Analyzing trace with hash -907391560, now seen corresponding path program 1 times [2018-11-10 13:02:41,328 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 13:02:41,328 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 13:02:41,342 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 13:02:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:41,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:42,486 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:42,487 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 13:02:44,031 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-10 13:02:44,306 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:02:44,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 13:02:44,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2018-11-10 13:02:44,308 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 13:02:44,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 13:02:44,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-11-10 13:02:44,308 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 18 states. [2018-11-10 13:02:44,859 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-10 13:02:46,214 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2018-11-10 13:02:48,936 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-10 13:02:49,755 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-10 13:02:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:49,764 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-10 13:02:49,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-10 13:02:49,768 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2018-11-10 13:02:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:49,768 INFO L225 Difference]: With dead ends: 30 [2018-11-10 13:02:49,768 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:02:49,769 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2018-11-10 13:02:49,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:02:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:02:49,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:02:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:02:49,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-10 13:02:49,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:49,770 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:02:49,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 13:02:49,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:02:49,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:02:49,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:02:49,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-10 13:02:50,414 WARN L179 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 25 [2018-11-10 13:02:50,944 WARN L179 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 14 [2018-11-10 13:02:50,972 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 13:02:50,972 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:02:50,972 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:02:50,972 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:02:50,972 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:02:50,972 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:02:50,972 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 22 46) no Hoare annotation was computed. [2018-11-10 13:02:50,972 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 22 46) no Hoare annotation was computed. [2018-11-10 13:02:50,973 INFO L421 ceAbstractionStarter]: At program point L40-1(lines 40 42) the Hoare annotation is: (or (and (exists ((main_~s~0 (_ BitVec 32))) (= (bvadd main_~d~0 (_ bv1 32)) (bvshl (_ bv1 32) main_~s~0))) (= main_~n~0 main_~d~0) (= main_~m~0 (_ bv0 32)) (bvugt main_~d~0 (_ bv0 32))) (and (exists ((main_~s~0 (_ BitVec 32))) (and (= (bvadd main_~d~0 (_ bv1 32)) (bvshl (_ bv1 32) main_~s~0)) (bvult main_~s~0 (_ bv31 32)))) (not (= main_~m~0 main_~d~0)) (not (bvugt main_~n~0 main_~d~0)) (= main_~n~0 main_~m~0))) [2018-11-10 13:02:50,973 INFO L425 ceAbstractionStarter]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2018-11-10 13:02:50,973 INFO L425 ceAbstractionStarter]: For program point L32-1(lines 32 39) no Hoare annotation was computed. [2018-11-10 13:02:50,973 INFO L421 ceAbstractionStarter]: At program point L34-3(lines 34 37) the Hoare annotation is: (and (= (bvadd main_~d~0 (_ bv1 32)) (bvshl (_ bv1 32) main_~s~0)) (bvult main_~s~0 (_ bv31 32)) (bvugt main_~d~0 (_ bv0 32))) [2018-11-10 13:02:50,973 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 44) no Hoare annotation was computed. [2018-11-10 13:02:50,973 INFO L425 ceAbstractionStarter]: For program point L34-4(lines 34 37) no Hoare annotation was computed. [2018-11-10 13:02:50,973 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 22 46) the Hoare annotation is: true [2018-11-10 13:02:50,973 INFO L421 ceAbstractionStarter]: At program point L32-3(lines 32 39) the Hoare annotation is: (and (= (bvadd main_~d~0 (_ bv1 32)) (bvshl (_ bv1 32) main_~s~0)) (bvult main_~s~0 (_ bv31 32)) (= main_~n~0 main_~m~0) (bvugt main_~d~0 (_ bv0 32))) [2018-11-10 13:02:50,973 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 44) no Hoare annotation was computed. [2018-11-10 13:02:50,973 INFO L425 ceAbstractionStarter]: For program point L32-4(lines 30 44) no Hoare annotation was computed. [2018-11-10 13:02:50,974 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2018-11-10 13:02:50,974 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2018-11-10 13:02:50,979 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2018-11-10 13:02:50,979 INFO L425 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-11-10 13:02:50,979 INFO L425 ceAbstractionStarter]: For program point L6(lines 6 8) no Hoare annotation was computed. [2018-11-10 13:02:50,980 INFO L425 ceAbstractionStarter]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2018-11-10 13:02:50,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:02:50 BoogieIcfgContainer [2018-11-10 13:02:50,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:02:50,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:02:50,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:02:50,989 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:02:50,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:25" (3/4) ... [2018-11-10 13:02:50,991 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:02:50,995 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:02:50,995 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:02:50,996 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 13:02:50,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 13:02:50,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 13:02:50,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:02:51,023 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_992b6ac0-d16c-4f7d-ba3a-de54056ab003/bin-2019/uautomizer/witness.graphml [2018-11-10 13:02:51,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:02:51,023 INFO L168 Benchmark]: Toolchain (without parser) took 26390.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -245.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:51,024 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:51,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.10 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:51,024 INFO L168 Benchmark]: Boogie Preprocessor took 25.69 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:51,025 INFO L168 Benchmark]: RCFGBuilder took 203.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -195.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:51,025 INFO L168 Benchmark]: TraceAbstraction took 25947.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -71.2 MB). Peak memory consumption was 320.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:51,025 INFO L168 Benchmark]: Witness Printer took 34.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:51,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.10 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.69 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 203.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -195.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25947.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -71.2 MB). Peak memory consumption was 320.5 MB. Max. memory is 11.5 GB. * Witness Printer took 34.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((~bvadd64(d, 1bv32) == ~bvshl32(1bv32, s) && ~bvult32(s, 31bv32)) && n == m) && ~bvugt32(d, 0bv32) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (~bvadd64(d, 1bv32) == ~bvshl32(1bv32, s) && ~bvult32(s, 31bv32)) && ~bvugt32(d, 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 25.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 105 SDtfs, 108 SDslu, 353 SDs, 0 SdLazy, 324 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 19.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 15 PreInvPairs, 26 NumberOfFragments, 79 HoareAnnotationTreeSize, 15 FomulaSimplifications, 705 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 231 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 153 ConstructedInterpolants, 49 QuantifiedInterpolants, 25168 SizeOfPredicates, 19 NumberOfNonLiveVariables, 223 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 20/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...