./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-1.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_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/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_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/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_9f4d3198-997d-4728-b360-ea2bc57b2e1c/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 a830784866b9d978d50fc7ce179ad1833e96bce936e06d428688d824a51c25e5 .................................................................................................................................................................................................................................................................................................. 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 23:14:18,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:14:18,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:14:18,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:14:18,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:14:18,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:14:18,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:14:18,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:14:18,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:14:18,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:14:18,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:14:18,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:14:18,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:14:18,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:14:18,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:14:18,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:14:18,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:14:18,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:14:18,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:14:18,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:14:18,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:14:18,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:14:18,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:14:18,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:14:18,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:14:18,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:14:18,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:14:18,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:14:18,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:14:18,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:14:18,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:14:18,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:14:18,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:14:18,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:14:18,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:14:18,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:14:18,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:14:18,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:14:18,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:14:18,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:14:18,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:14:18,777 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 23:14:18,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:14:18,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:14:18,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:14:18,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:14:18,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:14:18,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:14:18,802 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:14:18,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:14:18,803 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:14:18,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:14:18,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:14:18,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:14:18,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:14:18,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:14:18,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:14:18,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:14:18,804 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 23:14:18,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:14:18,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:14:18,805 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:14:18,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:14:18,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:14:18,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:14:18,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:14:18,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:14:18,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:14:18,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:14:18,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:14:18,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:14:18,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:14:18,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:14:18,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:14:18,808 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_9f4d3198-997d-4728-b360-ea2bc57b2e1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a830784866b9d978d50fc7ce179ad1833e96bce936e06d428688d824a51c25e5 [2021-10-28 23:14:19,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:14:19,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:14:19,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:14:19,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:14:19,097 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:14:19,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive-simple/id_b3_o2-1.c [2021-10-28 23:14:19,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/data/aa2f3225d/fcae91e63fd04b72b6d9c990bfcf3c51/FLAG1571f6ce8 [2021-10-28 23:14:19,594 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:14:19,594 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/sv-benchmarks/c/recursive-simple/id_b3_o2-1.c [2021-10-28 23:14:19,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/data/aa2f3225d/fcae91e63fd04b72b6d9c990bfcf3c51/FLAG1571f6ce8 [2021-10-28 23:14:19,992 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/data/aa2f3225d/fcae91e63fd04b72b6d9c990bfcf3c51 [2021-10-28 23:14:19,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:14:19,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:14:19,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:14:19,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:14:20,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:14:20,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:14:19" (1/1) ... [2021-10-28 23:14:20,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f008ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20, skipping insertion in model container [2021-10-28 23:14:20,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:14:19" (1/1) ... [2021-10-28 23:14:20,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:14:20,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:14:20,208 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_9f4d3198-997d-4728-b360-ea2bc57b2e1c/sv-benchmarks/c/recursive-simple/id_b3_o2-1.c[514,527] [2021-10-28 23:14:20,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:14:20,218 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:14:20,232 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_9f4d3198-997d-4728-b360-ea2bc57b2e1c/sv-benchmarks/c/recursive-simple/id_b3_o2-1.c[514,527] [2021-10-28 23:14:20,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:14:20,246 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:14:20,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20 WrapperNode [2021-10-28 23:14:20,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:14:20,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:14:20,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:14:20,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:14:20,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:14:20,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:14:20,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:14:20,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:14:20,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:14:20,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:14:20,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:14:20,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:14:20,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (1/1) ... [2021-10-28 23:14:20,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:14:20,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:14:20,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:14:20,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:14:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:14:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:14:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:14:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-28 23:14:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-28 23:14:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:14:20,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:14:20,567 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 23:14:20,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:14:20 BoogieIcfgContainer [2021-10-28 23:14:20,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:14:20,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:14:20,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:14:20,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:14:20,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:14:19" (1/3) ... [2021-10-28 23:14:20,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b02dcde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:14:20, skipping insertion in model container [2021-10-28 23:14:20,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:14:20" (2/3) ... [2021-10-28 23:14:20,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b02dcde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:14:20, skipping insertion in model container [2021-10-28 23:14:20,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:14:20" (3/3) ... [2021-10-28 23:14:20,579 INFO L111 eAbstractionObserver]: Analyzing ICFG id_b3_o2-1.c [2021-10-28 23:14:20,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:14:20,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-28 23:14:20,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:14:20,657 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 23:14:20,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 23:14:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:14:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-28 23:14:20,684 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:14:20,685 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:14:20,686 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-28 23:14:20,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:14:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash 890408432, now seen corresponding path program 1 times [2021-10-28 23:14:20,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:14:20,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574444400] [2021-10-28 23:14:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:14:20,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:14:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:14:20,877 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 23:14:20,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:14:20,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574444400] [2021-10-28 23:14:20,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574444400] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:14:20,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:14:20,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:14:20,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701674958] [2021-10-28 23:14:20,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:14:20,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:14:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:14:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:14:20,902 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 23:14:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:14:20,991 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-10-28 23:14:20,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:14:20,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 6 [2021-10-28 23:14:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:14:21,000 INFO L225 Difference]: With dead ends: 27 [2021-10-28 23:14:21,010 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 23:14:21,014 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 23:14:21,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 23:14:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 23:14:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 23:14:21,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 23:14:21,072 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2021-10-28 23:14:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:14:21,096 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 23:14:21,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 23:14:21,096 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-10-28 23:14:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 23:14:21,097 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:14:21,097 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:14:21,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:14:21,098 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-10-28 23:14:21,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:14:21,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1832857669, now seen corresponding path program 1 times [2021-10-28 23:14:21,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:14:21,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084964123] [2021-10-28 23:14:21,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:14:21,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:14:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:14:21,123 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:14:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:14:21,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:14:21,162 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:14:21,164 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:14:21,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:14:21,166 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:14:21,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 23:14:21,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:14:21,171 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:14:21,174 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:14:21,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:14:21 BoogieIcfgContainer [2021-10-28 23:14:21,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:14:21,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:14:21,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:14:21,194 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:14:21,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:14:20" (3/4) ... [2021-10-28 23:14:21,196 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:14:21,227 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:14:21,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:14:21,229 INFO L168 Benchmark]: Toolchain (without parser) took 1232.11 ms. Allocated memory is still 138.4 MB. Free memory was 100.2 MB in the beginning and 73.7 MB in the end (delta: 26.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:21,230 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 138.4 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 151.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:21,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.69 ms. Allocated memory is still 138.4 MB. Free memory was 100.1 MB in the beginning and 113.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:21,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.73 ms. Allocated memory is still 138.4 MB. Free memory was 113.5 MB in the beginning and 112.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:21,232 INFO L168 Benchmark]: Boogie Preprocessor took 18.08 ms. Allocated memory is still 138.4 MB. Free memory was 112.1 MB in the beginning and 110.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:14:21,233 INFO L168 Benchmark]: RCFGBuilder took 270.00 ms. Allocated memory is still 138.4 MB. Free memory was 110.8 MB in the beginning and 101.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:21,233 INFO L168 Benchmark]: TraceAbstraction took 621.71 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 75.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:21,234 INFO L168 Benchmark]: Witness Printer took 33.95 ms. Allocated memory is still 138.4 MB. Free memory was 75.7 MB in the beginning and 73.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:14:21,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 138.4 MB. Free memory was 117.1 MB in the beginning and 116.9 MB in the end (delta: 151.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.69 ms. Allocated memory is still 138.4 MB. Free memory was 100.1 MB in the beginning and 113.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.73 ms. Allocated memory is still 138.4 MB. Free memory was 113.5 MB in the beginning and 112.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.08 ms. Allocated memory is still 138.4 MB. Free memory was 112.1 MB in the beginning and 110.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 270.00 ms. Allocated memory is still 138.4 MB. Free memory was 110.8 MB in the beginning and 101.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 621.71 ms. Allocated memory is still 138.4 MB. Free memory was 101.0 MB in the beginning and 75.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 33.95 ms. Allocated memory is still 138.4 MB. Free memory was 75.7 MB in the beginning and 73.7 MB in the end (delta: 2.0 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: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int input = __VERIFIER_nondet_int(); [L15] CALL id(input) VAL [\old(x)=-2147483648] [L7] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L8] x-1 VAL [\old(x)=-2147483648, x=-2147483648] - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: 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 2 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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: 17 SDtfs, 31 SDslu, 25 SDs, 0 SdLazy, 19 SolverSat, 3 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=24occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 23:14:21,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4d3198-997d-4728-b360-ea2bc57b2e1c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...