./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/hhk2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/hhk2008.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/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 87cc795aa65fe4d82c2d07650c9d4f8c9be47413 ..................................................................................................................................................................................................................................................................................................................................................................................... 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 03:19:51,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:51,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:51,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:51,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:51,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:51,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:51,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:51,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:51,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:51,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:51,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:51,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:51,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:51,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:51,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:51,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:51,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:51,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:51,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:51,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:51,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:51,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:51,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:51,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:51,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:51,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:51,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:51,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:51,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:51,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:52,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:52,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:52,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:52,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:52,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:52,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:52,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:52,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:52,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:52,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:52,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:52,040 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:52,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:52,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:52,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:52,042 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:52,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:52,043 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:52,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:52,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:52,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:52,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:52,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:52,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:52,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:52,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:52,046 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:52,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:52,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:52,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:52,048 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:52,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:52,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:52,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:52,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:52,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:52,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:52,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:52,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:52,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:52,055 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_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87cc795aa65fe4d82c2d07650c9d4f8c9be47413 [2020-11-28 03:19:52,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:52,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:52,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:52,357 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:52,358 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:52,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/../../sv-benchmarks/c/loop-lit/hhk2008.i [2020-11-28 03:19:52,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/data/d8f0cbdf2/7791d1f859144e6e9c85c96ef7166b55/FLAG7b6197ab5 [2020-11-28 03:19:53,008 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:53,009 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/sv-benchmarks/c/loop-lit/hhk2008.i [2020-11-28 03:19:53,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/data/d8f0cbdf2/7791d1f859144e6e9c85c96ef7166b55/FLAG7b6197ab5 [2020-11-28 03:19:53,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/data/d8f0cbdf2/7791d1f859144e6e9c85c96ef7166b55 [2020-11-28 03:19:53,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:53,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:53,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:53,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:53,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:53,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf1a7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53, skipping insertion in model container [2020-11-28 03:19:53,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:53,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:53,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:53,705 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:53,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:53,760 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:53,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53 WrapperNode [2020-11-28 03:19:53,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:53,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:53,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:53,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:53,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:53,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:53,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:53,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:53,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... [2020-11-28 03:19:53,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:53,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:53,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:53,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:53,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/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 03:19:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:54,206 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:54,207 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:19:54,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:54 BoogieIcfgContainer [2020-11-28 03:19:54,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:54,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:54,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:54,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:54,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:53" (1/3) ... [2020-11-28 03:19:54,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10256452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:54, skipping insertion in model container [2020-11-28 03:19:54,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:53" (2/3) ... [2020-11-28 03:19:54,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10256452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:54, skipping insertion in model container [2020-11-28 03:19:54,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:54" (3/3) ... [2020-11-28 03:19:54,251 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2020-11-28 03:19:54,263 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:54,276 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:19:54,313 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:19:54,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:54,347 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:54,353 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:54,362 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:54,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:54,363 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:54,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:54,363 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:54,385 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 03:19:54,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:19:54,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:54,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:54,398 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:54,408 INFO L82 PathProgramCache]: Analyzing trace with hash 825893041, now seen corresponding path program 1 times [2020-11-28 03:19:54,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:54,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734742616] [2020-11-28 03:19:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:54,866 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 03:19:54,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734742616] [2020-11-28 03:19:54,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:54,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:54,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467415898] [2020-11-28 03:19:54,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:19:54,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:19:54,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:19:54,893 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-11-28 03:19:55,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:55,063 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-11-28 03:19:55,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:55,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 03:19:55,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:55,084 INFO L225 Difference]: With dead ends: 36 [2020-11-28 03:19:55,088 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 03:19:55,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:19:55,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 03:19:55,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 03:19:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 03:19:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 03:19:55,132 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-11-28 03:19:55,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:55,133 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-28 03:19:55,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:19:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 03:19:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:19:55,135 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:55,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:55,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:55,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:55,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1433278006, now seen corresponding path program 1 times [2020-11-28 03:19:55,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:55,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610130100] [2020-11-28 03:19:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:55,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610130100] [2020-11-28 03:19:55,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840376860] [2020-11-28 03:19:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/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 03:19:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:55,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:19:55,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:55,537 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:19:55,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:55,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:19:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:55,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:19:55,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-28 03:19:55,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101910318] [2020-11-28 03:19:55,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:19:55,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:55,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:19:55,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:19:55,591 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2020-11-28 03:19:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:55,743 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-11-28 03:19:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:55,744 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-11-28 03:19:55,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:55,745 INFO L225 Difference]: With dead ends: 19 [2020-11-28 03:19:55,745 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 03:19:55,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:19:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 03:19:55,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 03:19:55,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:19:55,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-11-28 03:19:55,750 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-11-28 03:19:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:55,750 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-11-28 03:19:55,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:19:55,750 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-11-28 03:19:55,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:19:55,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:55,753 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:55,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 03:19:55,954 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:55,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:55,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1212624559, now seen corresponding path program 2 times [2020-11-28 03:19:55,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:55,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602508013] [2020-11-28 03:19:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:56,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602508013] [2020-11-28 03:19:56,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111636387] [2020-11-28 03:19:56,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/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 03:19:56,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:19:56,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:19:56,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-28 03:19:56,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:56,321 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:19:56,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:56,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:19:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:56,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:19:56,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-11-28 03:19:56,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572662080] [2020-11-28 03:19:56,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 03:19:56,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:56,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 03:19:56,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:19:56,378 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 11 states. [2020-11-28 03:19:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:56,776 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-28 03:19:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 03:19:56,777 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-28 03:19:56,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:56,777 INFO L225 Difference]: With dead ends: 16 [2020-11-28 03:19:56,777 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:19:56,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-11-28 03:19:56,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:19:56,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:19:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:19:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:19:56,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-28 03:19:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:56,780 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:56,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 03:19:56,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:56,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:19:56,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:19:56,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:19:57,071 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:19:57,072 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-11-28 03:19:57,072 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 03:19:57,072 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:19:57,072 INFO L270 CegarLoopResult]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~cnt~0)) (.cse0 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (and (< ULTIMATE.start_main_~res~0 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0 1)) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-11-28 03:19:57,073 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:19:57,073 INFO L274 CegarLoopResult]: For program point L32-3(lines 32 35) no Hoare annotation was computed. [2020-11-28 03:19:57,073 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:19:57,073 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-11-28 03:19:57,073 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 03:19:57,073 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-28 03:19:57,074 INFO L270 CegarLoopResult]: At program point L18-2(lines 17 22) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-11-28 03:19:57,074 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:19:57,074 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 03:19:57,074 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-28 03:19:57,074 INFO L277 CegarLoopResult]: At program point L37(lines 24 38) the Hoare annotation is: true [2020-11-28 03:19:57,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:57 BoogieIcfgContainer [2020-11-28 03:19:57,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:57,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:57,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:57,103 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:57,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:54" (3/4) ... [2020-11-28 03:19:57,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:19:57,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:19:57,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:19:57,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:57,120 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:57,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5be37290-81d1-46f7-9cf5-9bc0133e8ec9/bin/uautomizer/witness.graphml [2020-11-28 03:19:57,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:57,195 INFO L168 Benchmark]: Toolchain (without parser) took 3834.74 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 67.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 30.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,195 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 47.6 MB in the beginning and 47.6 MB in the end (delta: 54.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.97 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 61.0 MB in the beginning and 100.7 MB in the end (delta: -39.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,198 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.10 ms. Allocated memory is still 123.7 MB. Free memory was 100.7 MB in the beginning and 99.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,199 INFO L168 Benchmark]: Boogie Preprocessor took 21.35 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 98.5 MB in the end (delta: 910.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:57,204 INFO L168 Benchmark]: RCFGBuilder took 383.35 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 87.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,204 INFO L168 Benchmark]: TraceAbstraction took 2880.47 ms. Allocated memory is still 123.7 MB. Free memory was 86.9 MB in the beginning and 69.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,205 INFO L168 Benchmark]: Witness Printer took 80.21 ms. Allocated memory is still 123.7 MB. Free memory was 69.3 MB in the beginning and 67.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:57,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory was 47.6 MB in the beginning and 47.6 MB in the end (delta: 54.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.97 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 61.0 MB in the beginning and 100.7 MB in the end (delta: -39.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.10 ms. Allocated memory is still 123.7 MB. Free memory was 100.7 MB in the beginning and 99.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.35 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 98.5 MB in the end (delta: 910.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 383.35 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 87.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2880.47 ms. Allocated memory is still 123.7 MB. Free memory was 86.9 MB in the beginning and 69.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * Witness Printer took 80.21 ms. Allocated memory is still 123.7 MB. Free memory was 69.3 MB in the beginning and 67.2 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: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (res < a + b + 1 && a + b <= res + cnt) && res + cnt <= a + b - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 32 SDslu, 74 SDs, 0 SdLazy, 102 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 26 HoareAnnotationTreeSize, 3 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 68 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 2957 SizeOfPredicates, 12 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8 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...