./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/mannadiv.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/mannadiv.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/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 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:08:57,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:08:57,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:08:57,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:08:57,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:08:57,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:08:57,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:08:57,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:08:57,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:08:57,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:08:57,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:08:57,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:08:57,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:08:57,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:08:57,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:08:57,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:08:57,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:08:57,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:08:57,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:08:57,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:08:57,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:08:57,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:08:57,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:08:57,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:08:57,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:08:57,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:08:57,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:08:57,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:08:57,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:08:57,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:08:57,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:08:57,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:08:57,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:08:57,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:08:57,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:08:57,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:08:57,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:08:57,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:08:57,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:08:57,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:08:57,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:08:57,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:08:57,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:08:57,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:08:57,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:08:57,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:08:57,248 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:08:57,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:08:57,248 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:08:57,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:08:57,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:08:57,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:08:57,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:08:57,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:08:57,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:08:57,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:08:57,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:08:57,250 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:08:57,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:08:57,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:08:57,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:08:57,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:08:57,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:08:57,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:08:57,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:08:57,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:08:57,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:08:57,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:08:57,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:08:57,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:08:57,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:08:57,253 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_6e272f23-8f74-4ddb-8591-5991fd39b9c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33a8be774dbf0ffa25cd035ec8d49deb9466ec7f [2020-12-01 15:08:57,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:08:57,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:08:57,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:08:57,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:08:57,569 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:08:57,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/mannadiv.c [2020-12-01 15:08:57,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/data/968a2c6d4/0943a4d4383f44a8a75c9a93ce7342cc/FLAGf9b6bb9c2 [2020-12-01 15:08:58,125 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:08:58,126 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/sv-benchmarks/c/nla-digbench/mannadiv.c [2020-12-01 15:08:58,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/data/968a2c6d4/0943a4d4383f44a8a75c9a93ce7342cc/FLAGf9b6bb9c2 [2020-12-01 15:08:58,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/data/968a2c6d4/0943a4d4383f44a8a75c9a93ce7342cc [2020-12-01 15:08:58,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:08:58,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:08:58,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:08:58,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:08:58,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:08:58,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ece29a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58, skipping insertion in model container [2020-12-01 15:08:58,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:08:58,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:08:58,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:08:58,847 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:08:58,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:08:58,896 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:08:58,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58 WrapperNode [2020-12-01 15:08:58,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:08:58,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:08:58,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:08:58,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:08:58,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:08:58,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:08:58,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:08:58,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:08:58,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... [2020-12-01 15:08:58,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:08:58,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:08:58,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:08:58,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:08:58,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/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 [2020-12-01 15:08:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:08:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:08:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:08:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:08:59,262 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:08:59,262 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-01 15:08:59,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:08:59 BoogieIcfgContainer [2020-12-01 15:08:59,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:08:59,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:08:59,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:08:59,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:08:59,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:08:58" (1/3) ... [2020-12-01 15:08:59,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1313f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:08:59, skipping insertion in model container [2020-12-01 15:08:59,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:08:58" (2/3) ... [2020-12-01 15:08:59,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1313f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:08:59, skipping insertion in model container [2020-12-01 15:08:59,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:08:59" (3/3) ... [2020-12-01 15:08:59,292 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv.c [2020-12-01 15:08:59,306 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:08:59,309 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:08:59,322 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:08:59,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:08:59,349 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:08:59,349 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:08:59,349 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:08:59,349 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:08:59,349 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:08:59,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:08:59,350 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:08:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-01 15:08:59,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:08:59,368 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:59,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:59,369 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:08:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:59,374 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-01 15:08:59,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:59,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117586965] [2020-12-01 15:08:59,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:08:59,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117586965] [2020-12-01 15:08:59,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:08:59,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:08:59,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765191582] [2020-12-01 15:08:59,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:08:59,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:08:59,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:08:59,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:08:59,591 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-12-01 15:08:59,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:08:59,604 INFO L93 Difference]: Finished difference Result 37 states and 50 transitions. [2020-12-01 15:08:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:08:59,606 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:08:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:08:59,613 INFO L225 Difference]: With dead ends: 37 [2020-12-01 15:08:59,613 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:08:59,616 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 [2020-12-01 15:08:59,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:08:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:08:59,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:08:59,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-01 15:08:59,670 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 9 [2020-12-01 15:08:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:08:59,671 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-01 15:08:59,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:08:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-01 15:08:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:08:59,673 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:08:59,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:08:59,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:08:59,674 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:08:59,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:08:59,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-01 15:08:59,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:08:59,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458656261] [2020-12-01 15:08:59,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:08:59,700 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:08:59,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051843418] [2020-12-01 15:08:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/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 [2020-12-01 15:08:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:08:59,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 15:08:59,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:00,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:00,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458656261] [2020-12-01 15:09:00,057 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:09:00,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051843418] [2020-12-01 15:09:00,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:00,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-01 15:09:00,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192478216] [2020-12-01 15:09:00,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:09:00,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:09:00,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:09:00,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:09:00,062 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 8 states. [2020-12-01 15:09:00,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:00,388 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-12-01 15:09:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:09:00,389 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-12-01 15:09:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:00,390 INFO L225 Difference]: With dead ends: 27 [2020-12-01 15:09:00,390 INFO L226 Difference]: Without dead ends: 25 [2020-12-01 15:09:00,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:09:00,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-12-01 15:09:00,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2020-12-01 15:09:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-01 15:09:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-12-01 15:09:00,410 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2020-12-01 15:09:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:00,412 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-12-01 15:09:00,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:09:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-12-01 15:09:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:09:00,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:00,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:00,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:09:00,633 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:09:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:00,634 INFO L82 PathProgramCache]: Analyzing trace with hash 637885054, now seen corresponding path program 1 times [2020-12-01 15:09:00,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:09:00,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723230647] [2020-12-01 15:09:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:09:00,660 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:09:00,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1807856197] [2020-12-01 15:09:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/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 [2020-12-01 15:09:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:00,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:09:00,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:09:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:00,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723230647] [2020-12-01 15:09:00,945 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:09:00,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807856197] [2020-12-01 15:09:00,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:00,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-01 15:09:00,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346026256] [2020-12-01 15:09:00,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:09:00,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:09:00,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:09:00,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:09:00,960 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 9 states. [2020-12-01 15:09:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:01,141 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2020-12-01 15:09:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:09:01,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-12-01 15:09:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:01,142 INFO L225 Difference]: With dead ends: 18 [2020-12-01 15:09:01,142 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:09:01,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:09:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:09:01,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:09:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:09:01,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:09:01,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-01 15:09:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:01,144 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:09:01,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:09:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:09:01,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:09:01,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:09:01,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:09:01,534 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 48) no Hoare annotation was computed. [2020-12-01 15:09:01,534 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-12-01 15:09:01,534 INFO L262 CegarLoopResult]: For program point L40(lines 40 47) no Hoare annotation was computed. [2020-12-01 15:09:01,536 INFO L258 CegarLoopResult]: At program point L40-2(lines 35 48) the Hoare annotation is: (let ((.cse0 (not (= ULTIMATE.start_main_~x2~0 0))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 0 ULTIMATE.start_main_~x1~0)) (.cse3 (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))))) (or (and .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1 .cse2 .cse3 (<= ULTIMATE.start_main_~y3~0 ULTIMATE.start_main_~x1~0)) (and .cse0 (= ULTIMATE.start_main_~x1~0 ULTIMATE.start_main_~y3~0) .cse1 .cse2 (= ULTIMATE.start_main_~y2~0 0) .cse3))) [2020-12-01 15:09:01,536 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:09:01,537 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:09:01,537 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:09:01,537 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-12-01 15:09:01,537 INFO L262 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-12-01 15:09:01,538 INFO L258 CegarLoopResult]: At program point L16-1(line 38) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~x2~0 0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (<= 0 ULTIMATE.start_main_~x1~0) (= ULTIMATE.start_main_~x1~0 (+ ULTIMATE.start_main_~y2~0 ULTIMATE.start_main_~y3~0 (* ULTIMATE.start_main_~y1~0 ULTIMATE.start_main_~x2~0))) (<= ULTIMATE.start_main_~y3~0 ULTIMATE.start_main_~x1~0)) [2020-12-01 15:09:01,538 INFO L262 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-12-01 15:09:01,538 INFO L265 CegarLoopResult]: At program point L16-3(lines 15 21) the Hoare annotation is: true [2020-12-01 15:09:01,538 INFO L262 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-12-01 15:09:01,538 INFO L262 CegarLoopResult]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2020-12-01 15:09:01,539 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:09:01,539 INFO L265 CegarLoopResult]: At program point L50(lines 22 51) the Hoare annotation is: true [2020-12-01 15:09:01,539 INFO L262 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-12-01 15:09:01,539 INFO L262 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2020-12-01 15:09:01,539 INFO L262 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-12-01 15:09:01,539 INFO L262 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-12-01 15:09:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:09:01 BoogieIcfgContainer [2020-12-01 15:09:01,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:09:01,566 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:09:01,566 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:09:01,566 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:09:01,567 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:08:59" (3/4) ... [2020-12-01 15:09:01,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:09:01,582 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 15:09:01,582 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:09:01,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:09:01,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:09:01,634 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6e272f23-8f74-4ddb-8591-5991fd39b9c5/bin/uautomizer/witness.graphml [2020-12-01 15:09:01,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:09:01,637 INFO L168 Benchmark]: Toolchain (without parser) took 3132.02 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 66.1 MB in the beginning and 88.2 MB in the end (delta: -22.1 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:01,637 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory is still 46.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:01,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.14 ms. Allocated memory is still 96.5 MB. Free memory was 65.8 MB in the beginning and 73.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:01,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.26 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 71.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:01,640 INFO L168 Benchmark]: Boogie Preprocessor took 36.69 ms. Allocated memory is still 96.5 MB. Free memory was 71.9 MB in the beginning and 70.9 MB in the end (delta: 986.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:01,641 INFO L168 Benchmark]: RCFGBuilder took 273.93 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 58.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:01,642 INFO L168 Benchmark]: TraceAbstraction took 2299.23 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 57.7 MB in the beginning and 91.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:01,643 INFO L168 Benchmark]: Witness Printer took 68.81 ms. Allocated memory is still 121.6 MB. Free memory was 90.3 MB in the beginning and 88.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:01,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory is still 46.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.14 ms. Allocated memory is still 96.5 MB. Free memory was 65.8 MB in the beginning and 73.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.26 ms. Allocated memory is still 96.5 MB. Free memory was 73.5 MB in the beginning and 71.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.69 ms. Allocated memory is still 96.5 MB. Free memory was 71.9 MB in the beginning and 70.9 MB in the end (delta: 986.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 273.93 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 58.2 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2299.23 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 57.7 MB in the beginning and 91.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * Witness Printer took 68.81 ms. Allocated memory is still 121.6 MB. Free memory was 90.3 MB in the beginning and 88.2 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: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: 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: 38]: Loop Invariant Derived loop invariant: ((((!(x2 == 0) && 1 == cond) && cond == 1) && 0 <= x1) && x1 == y2 + y3 + y1 * x2) && y3 <= x1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((!(x2 == 0) && 1 == cond) && cond == 1) && 0 <= x1) && x1 == y2 + y3 + y1 * x2) && y3 <= x1) || (((((!(x2 == 0) && x1 == y3) && cond == 1) && 0 <= x1) && y2 == 0) && x1 == y2 + y3 + y1 * x2) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 85 SDslu, 27 SDs, 0 SdLazy, 76 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 78 HoareAnnotationTreeSize, 4 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1653 SizeOfPredicates, 20 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...