./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04682225c8f8ef1d718e2eff7a5dbc28147daac3b8dcdca523479af4f0e32241 ...................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 22:58:44,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 22:58:44,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 22:58:44,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 22:58:44,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 22:58:44,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 22:58:44,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 22:58:44,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 22:58:44,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 22:58:44,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 22:58:44,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 22:58:44,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 22:58:44,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 22:58:44,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 22:58:44,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 22:58:44,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 22:58:44,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 22:58:44,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 22:58:44,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 22:58:44,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 22:58:44,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 22:58:44,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 22:58:44,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 22:58:44,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 22:58:44,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 22:58:44,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 22:58:44,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 22:58:44,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 22:58:44,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 22:58:44,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 22:58:44,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 22:58:44,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 22:58:44,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 22:58:44,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 22:58:44,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 22:58:44,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 22:58:44,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 22:58:44,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 22:58:44,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 22:58:44,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 22:58:44,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 22:58:44,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 22:58:44,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 22:58:44,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 22:58:44,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 22:58:44,928 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 22:58:44,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 22:58:44,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 22:58:44,930 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 22:58:44,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 22:58:44,930 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 22:58:44,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 22:58:44,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 22:58:44,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 22:58:44,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 22:58:44,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 22:58:44,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 22:58:44,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 22:58:44,932 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 22:58:44,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 22:58:44,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 22:58:44,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 22:58:44,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 22:58:44,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 22:58:44,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 22:58:44,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 22:58:44,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:58:44,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 22:58:44,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 22:58:44,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 22:58:44,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 22:58:44,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 22:58:44,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 22:58:44,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 22:58:44,936 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_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04682225c8f8ef1d718e2eff7a5dbc28147daac3b8dcdca523479af4f0e32241 [2021-10-28 22:58:45,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 22:58:45,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 22:58:45,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 22:58:45,275 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 22:58:45,276 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 22:58:45,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2021-10-28 22:58:45,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/data/531ff69a7/e4ea771958044e8bbded324d5e7e7ef5/FLAGa60fa894f [2021-10-28 22:58:45,852 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 22:58:45,855 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2021-10-28 22:58:45,868 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/data/531ff69a7/e4ea771958044e8bbded324d5e7e7ef5/FLAGa60fa894f [2021-10-28 22:58:46,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/data/531ff69a7/e4ea771958044e8bbded324d5e7e7ef5 [2021-10-28 22:58:46,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 22:58:46,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 22:58:46,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 22:58:46,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 22:58:46,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 22:58:46,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77605d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46, skipping insertion in model container [2021-10-28 22:58:46,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 22:58:46,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 22:58:46,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c[948,961] [2021-10-28 22:58:46,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:58:46,481 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 22:58:46,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c[948,961] [2021-10-28 22:58:46,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 22:58:46,554 INFO L208 MainTranslator]: Completed translation [2021-10-28 22:58:46,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46 WrapperNode [2021-10-28 22:58:46,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 22:58:46,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 22:58:46,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 22:58:46,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 22:58:46,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 22:58:46,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 22:58:46,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 22:58:46,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 22:58:46,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 22:58:46,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 22:58:46,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 22:58:46,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 22:58:46,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (1/1) ... [2021-10-28 22:58:46,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 22:58:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 22:58:46,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 22:58:46,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 22:58:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2021-10-28 22:58:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2021-10-28 22:58:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 22:58:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 22:58:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2021-10-28 22:58:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2021-10-28 22:58:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 22:58:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 22:58:47,007 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 22:58:47,007 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 22:58:47,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:58:47 BoogieIcfgContainer [2021-10-28 22:58:47,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 22:58:47,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 22:58:47,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 22:58:47,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 22:58:47,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:58:46" (1/3) ... [2021-10-28 22:58:47,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acf601f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:58:47, skipping insertion in model container [2021-10-28 22:58:47,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:58:46" (2/3) ... [2021-10-28 22:58:47,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acf601f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:58:47, skipping insertion in model container [2021-10-28 22:58:47,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:58:47" (3/3) ... [2021-10-28 22:58:47,021 INFO L111 eAbstractionObserver]: Analyzing ICFG EvenOdd03WithOverflowBug.c [2021-10-28 22:58:47,027 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 22:58:47,027 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 22:58:47,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 22:58:47,104 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 22:58:47,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 22:58:47,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 22:58:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 22:58:47,130 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:58:47,131 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:58:47,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 22:58:47,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:58:47,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1098651861, now seen corresponding path program 1 times [2021-10-28 22:58:47,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:58:47,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773402502] [2021-10-28 22:58:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:58:47,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:58:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 22:58:47,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 22:58:47,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 22:58:47,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773402502] [2021-10-28 22:58:47,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773402502] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 22:58:47,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 22:58:47,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 22:58:47,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55040635] [2021-10-28 22:58:47,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 22:58:47,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 22:58:47,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 22:58:47,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 22:58:47,581 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:58:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 22:58:47,670 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-10-28 22:58:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 22:58:47,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-28 22:58:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 22:58:47,681 INFO L225 Difference]: With dead ends: 47 [2021-10-28 22:58:47,681 INFO L226 Difference]: Without dead ends: 26 [2021-10-28 22:58:47,684 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 22:58:47,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-28 22:58:47,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2021-10-28 22:58:47,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:58:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2021-10-28 22:58:47,722 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 7 [2021-10-28 22:58:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 22:58:47,723 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2021-10-28 22:58:47,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 22:58:47,723 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2021-10-28 22:58:47,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 22:58:47,724 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 22:58:47,724 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 22:58:47,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 22:58:47,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-28 22:58:47,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 22:58:47,726 INFO L85 PathProgramCache]: Analyzing trace with hash -301530635, now seen corresponding path program 1 times [2021-10-28 22:58:47,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 22:58:47,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645009406] [2021-10-28 22:58:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 22:58:47,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 22:58:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:58:47,748 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 22:58:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 22:58:47,788 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 22:58:47,788 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 22:58:47,791 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:58:47,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:58:47,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:58:47,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location isOddErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 22:58:47,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 22:58:47,798 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 22:58:47,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 22:58:47,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:58:47 BoogieIcfgContainer [2021-10-28 22:58:47,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 22:58:47,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 22:58:47,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 22:58:47,829 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 22:58:47,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:58:47" (3/4) ... [2021-10-28 22:58:47,832 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 22:58:47,874 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 22:58:47,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 22:58:47,877 INFO L168 Benchmark]: Toolchain (without parser) took 1661.86 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 70.9 MB in the end (delta: -18.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:58:47,877 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:58:47,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.45 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 84.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 22:58:47,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 107.0 MB. Free memory was 84.1 MB in the beginning and 82.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:58:47,880 INFO L168 Benchmark]: Boogie Preprocessor took 24.33 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 81.7 MB in the end (delta: 875.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:58:47,880 INFO L168 Benchmark]: RCFGBuilder took 384.01 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 71.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 22:58:47,881 INFO L168 Benchmark]: TraceAbstraction took 815.37 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 72.7 MB in the end (delta: -1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 22:58:47,882 INFO L168 Benchmark]: Witness Printer took 46.02 ms. Allocated memory is still 107.0 MB. Free memory was 72.7 MB in the beginning and 70.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 22:58:47,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.45 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.4 MB in the beginning and 84.1 MB in the end (delta: -31.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 107.0 MB. Free memory was 84.1 MB in the beginning and 82.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.33 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 81.7 MB in the end (delta: 875.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 384.01 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 71.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 815.37 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 72.7 MB in the end (delta: -1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 46.02 ms. Allocated memory is still 107.0 MB. Free memory was 72.7 MB in the beginning and 70.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 34]: integer overflow possible integer overflow possible We found a FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] CALL isEven(n) VAL [\old(n)=-2147483648] [L29] COND FALSE !(n == 0) VAL [\old(n)=-2147483648, n=-2147483648] [L31] COND FALSE !(n == 1) VAL [\old(n)=-2147483648, n=-2147483648] [L34] n - 1 VAL [\old(n)=-2147483648, n=-2147483648] - UnprovableResult [Line: 34]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 23 SDslu, 75 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! [2021-10-28 22:58:47,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10ff43d2-a0b7-48a6-8242-f3576bcc8633/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...