./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c --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_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/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 8faf10aa923bb224adb2f6131dd138bdff3c99e0 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:28,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:28,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:28,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:28,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:28,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:28,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:28,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:28,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:28,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:28,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:28,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:28,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:28,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:28,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:28,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:28,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:28,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:28,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:28,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:28,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:28,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:28,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:28,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:28,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:28,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:28,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:28,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:28,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:28,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:28,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:28,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:28,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:28,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:28,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:28,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:28,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:28,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:28,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:28,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:28,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:28,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:28,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:28,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:28,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:28,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:28,658 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:28,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:28,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:28,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:28,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:28,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:28,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:28,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:28,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:28,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:28,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:28,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:28,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:28,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:28,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:28,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:28,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:28,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:28,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:28,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:28,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:28,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:28,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:28,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:28,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:28,664 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_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8faf10aa923bb224adb2f6131dd138bdff3c99e0 [2020-11-28 02:56:28,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:28,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:28,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:28,990 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:28,991 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:28,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-11-28 02:56:29,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/data/bf19a3fe3/2b229ce9667042e29284e8dc001df4cf/FLAGa3607bb40 [2020-11-28 02:56:29,569 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:29,570 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2020-11-28 02:56:29,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/data/bf19a3fe3/2b229ce9667042e29284e8dc001df4cf/FLAGa3607bb40 [2020-11-28 02:56:29,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/data/bf19a3fe3/2b229ce9667042e29284e8dc001df4cf [2020-11-28 02:56:29,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:29,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:29,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:29,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:29,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:29,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:29,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1401751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:29, skipping insertion in model container [2020-11-28 02:56:29,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:29" (1/1) ... [2020-11-28 02:56:29,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:29,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:30,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:30,189 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:30,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:30,219 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:30,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30 WrapperNode [2020-11-28 02:56:30,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:30,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:30,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:30,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:30,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:30,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:30,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:30,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:30,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... [2020-11-28 02:56:30,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:30,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:30,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:30,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:30,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/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 [2020-11-28 02:56:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:30,560 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:30,560 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 02:56:30,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30 BoogieIcfgContainer [2020-11-28 02:56:30,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:30,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:30,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:30,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:30,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:29" (1/3) ... [2020-11-28 02:56:30,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be89461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:30, skipping insertion in model container [2020-11-28 02:56:30,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:30" (2/3) ... [2020-11-28 02:56:30,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be89461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:30, skipping insertion in model container [2020-11-28 02:56:30,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30" (3/3) ... [2020-11-28 02:56:30,591 INFO L111 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound2.c [2020-11-28 02:56:30,602 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:30,621 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 02:56:30,651 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 02:56:30,682 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:30,682 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:30,682 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:30,683 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:30,683 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:30,683 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:30,683 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:30,683 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-11-28 02:56:30,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 02:56:30,701 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:30,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:30,702 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:30,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:30,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-11-28 02:56:30,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:30,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132076985] [2020-11-28 02:56:30,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:30,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132076985] [2020-11-28 02:56:30,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:30,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:30,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455636026] [2020-11-28 02:56:30,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:30,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:30,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:30,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:30,890 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-11-28 02:56:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:30,901 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-11-28 02:56:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:30,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-28 02:56:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:30,908 INFO L225 Difference]: With dead ends: 31 [2020-11-28 02:56:30,908 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 02:56:30,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:30,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 02:56:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 02:56:30,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 02:56:30,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 02:56:30,938 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-11-28 02:56:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:30,939 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 02:56:30,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:30,939 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 02:56:30,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 02:56:30,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:30,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:30,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:30,940 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:30,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:30,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-11-28 02:56:30,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:30,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791394364] [2020-11-28 02:56:30,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:30,970 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:30,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684505093] [2020-11-28 02:56:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:31,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 02:56:31,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:31,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:31,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791394364] [2020-11-28 02:56:31,161 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:31,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684505093] [2020-11-28 02:56:31,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:31,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 02:56:31,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337753339] [2020-11-28 02:56:31,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 02:56:31,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:31,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 02:56:31,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 02:56:31,166 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2020-11-28 02:56:31,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:31,233 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-11-28 02:56:31,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 02:56:31,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-28 02:56:31,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:31,234 INFO L225 Difference]: With dead ends: 23 [2020-11-28 02:56:31,234 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 02:56:31,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 02:56:31,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-28 02:56:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 02:56:31,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 02:56:31,239 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2020-11-28 02:56:31,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:31,239 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 02:56:31,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 02:56:31,240 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 02:56:31,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 02:56:31,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:31,240 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:31,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 02:56:31,441 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:31,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:31,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1863233344, now seen corresponding path program 1 times [2020-11-28 02:56:31,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:31,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155512372] [2020-11-28 02:56:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:31,457 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:31,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474176725] [2020-11-28 02:56:31,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:31,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 02:56:31,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:31,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:31,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155512372] [2020-11-28 02:56:31,570 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:31,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474176725] [2020-11-28 02:56:31,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:31,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-28 02:56:31,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209528532] [2020-11-28 02:56:31,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:31,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:31,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:31,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:31,573 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2020-11-28 02:56:31,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:31,655 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-11-28 02:56:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:56:31,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 02:56:31,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:31,656 INFO L225 Difference]: With dead ends: 26 [2020-11-28 02:56:31,656 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 02:56:31,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:56:31,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 02:56:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-28 02:56:31,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 02:56:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-28 02:56:31,662 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2020-11-28 02:56:31,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:31,662 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-28 02:56:31,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:31,662 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-28 02:56:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:31,663 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:31,663 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:31,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:31,882 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:31,883 INFO L82 PathProgramCache]: Analyzing trace with hash 578669199, now seen corresponding path program 2 times [2020-11-28 02:56:31,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:31,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69917653] [2020-11-28 02:56:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:31,896 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:31,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1221179181] [2020-11-28 02:56:31,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:31,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 02:56:31,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 02:56:31,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-28 02:56:31,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:32,034 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:32,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69917653] [2020-11-28 02:56:32,035 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:32,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221179181] [2020-11-28 02:56:32,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:32,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-28 02:56:32,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837969872] [2020-11-28 02:56:32,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:56:32,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:32,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:56:32,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:32,061 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2020-11-28 02:56:32,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:32,215 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-11-28 02:56:32,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:56:32,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-28 02:56:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:32,217 INFO L225 Difference]: With dead ends: 29 [2020-11-28 02:56:32,217 INFO L226 Difference]: Without dead ends: 23 [2020-11-28 02:56:32,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:56:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-28 02:56:32,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-11-28 02:56:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 02:56:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-11-28 02:56:32,224 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2020-11-28 02:56:32,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:32,224 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-11-28 02:56:32,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:56:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-11-28 02:56:32,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:32,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:32,229 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:32,429 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:32,430 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:32,431 INFO L82 PathProgramCache]: Analyzing trace with hash -858731936, now seen corresponding path program 3 times [2020-11-28 02:56:32,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:32,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469252143] [2020-11-28 02:56:32,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:32,446 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 02:56:32,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656644357] [2020-11-28 02:56:32,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:32,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-28 02:56:32,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 02:56:32,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 02:56:32,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:32,537 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 02:56:32,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:32,567 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:32,572 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 02:56:32,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469252143] [2020-11-28 02:56:32,593 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 02:56:32,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656644357] [2020-11-28 02:56:32,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-28 02:56:32,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-28 02:56:32,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167401416] [2020-11-28 02:56:32,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:32,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:32,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:32,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:32,596 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 5 states. [2020-11-28 02:56:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:32,674 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-11-28 02:56:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:56:32,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-11-28 02:56:32,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:32,676 INFO L225 Difference]: With dead ends: 22 [2020-11-28 02:56:32,676 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:56:32,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:32,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:56:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:56:32,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:56:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:56:32,680 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-28 02:56:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:32,680 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:56:32,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:56:32,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:56:32,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:32,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:56:32,955 INFO L270 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 (= (* ULTIMATE.start_main_~x~0 2) (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)))) (or (and (= ULTIMATE.start_main_~y~0 0) .cse0) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0))) [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:56:32,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 02:56:32,957 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:56:32,957 INFO L274 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-11-28 02:56:32,957 INFO L270 CegarLoopResult]: At program point L10-1(lines 30 31) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~x~0 2) (+ (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0))) [2020-11-28 02:56:32,957 INFO L274 CegarLoopResult]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2020-11-28 02:56:32,957 INFO L277 CegarLoopResult]: At program point L10-3(lines 9 15) the Hoare annotation is: true [2020-11-28 02:56:32,957 INFO L277 CegarLoopResult]: At program point L39(lines 17 40) the Hoare annotation is: true [2020-11-28 02:56:32,957 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-11-28 02:56:32,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:32 BoogieIcfgContainer [2020-11-28 02:56:32,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:32,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:32,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:32,980 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:32,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:30" (3/4) ... [2020-11-28 02:56:32,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:56:32,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 02:56:32,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:56:32,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:32,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:33,050 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7bb4bc67-5253-4b2b-b0d7-e14575dc7ffd/bin/uautomizer/witness.graphml [2020-11-28 02:56:33,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:33,056 INFO L168 Benchmark]: Toolchain (without parser) took 3106.38 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 62.8 MB in the beginning and 57.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,056 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory was 79.2 MB in the beginning and 79.1 MB in the end (delta: 53.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:33,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.44 ms. Allocated memory is still 98.6 MB. Free memory was 62.6 MB in the beginning and 76.0 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.97 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 74.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,058 INFO L168 Benchmark]: Boogie Preprocessor took 20.87 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.6 MB in the end (delta: 876.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:33,058 INFO L168 Benchmark]: RCFGBuilder took 274.72 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 61.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,059 INFO L168 Benchmark]: TraceAbstraction took 2408.44 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 61.2 MB in the beginning and 59.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,060 INFO L168 Benchmark]: Witness Printer took 74.54 ms. Allocated memory is still 121.6 MB. Free memory was 59.7 MB in the beginning and 57.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:33,063 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory was 79.2 MB in the beginning and 79.1 MB in the end (delta: 53.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.44 ms. Allocated memory is still 98.6 MB. Free memory was 62.6 MB in the beginning and 76.0 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.97 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 74.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.87 ms. Allocated memory is still 98.6 MB. Free memory was 74.5 MB in the beginning and 73.6 MB in the end (delta: 876.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 274.72 ms. Allocated memory is still 98.6 MB. Free memory was 73.3 MB in the beginning and 61.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2408.44 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 61.2 MB in the beginning and 59.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * Witness Printer took 74.54 ms. Allocated memory is still 121.6 MB. Free memory was 59.7 MB in the beginning and 57.5 MB in the end (delta: 2.1 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 == cond && x * 2 == y * y + y - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (y == 0 && x * 2 == y * y + y) || (1 == cond && x * 2 == y * y + y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 22 SDslu, 75 SDs, 0 SdLazy, 88 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 4 FomulaSimplifications, 123 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 2079 SizeOfPredicates, 18 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 14/24 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! Received shutdown request...