./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore_plus.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore_plus.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ --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 64bit --witnessprinter.graph.data.programhash c3723d2bd797ea7dd9c7122e0c3fa3069166309f774549aa72afdc171a0794e3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:06:45,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:06:45,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:06:45,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:06:45,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:06:45,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:06:45,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:06:45,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:06:45,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:06:45,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:06:45,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:06:45,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:06:45,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:06:45,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:06:45,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:06:45,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:06:45,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:06:45,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:06:45,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:06:45,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:06:45,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:06:45,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:06:45,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:06:45,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:06:45,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:06:45,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:06:45,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:06:45,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:06:45,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:06:45,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:06:45,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:06:45,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:06:45,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:06:45,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:06:45,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:06:45,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:06:45,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:06:45,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:06:46,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:06:46,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:06:46,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:06:46,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-10-17 11:06:46,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:06:46,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:06:46,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:06:46,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:06:46,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:06:46,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:06:46,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:06:46,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:06:46,067 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:06:46,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:06:46,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:06:46,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:06:46,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:06:46,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:06:46,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:06:46,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:06:46,073 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 11:06:46,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:06:46,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:06:46,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:06:46,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:06:46,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:06:46,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:06:46,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:46,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:06:46,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:06:46,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:06:46,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:06:46,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:06:46,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:06:46,080 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_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3723d2bd797ea7dd9c7122e0c3fa3069166309f774549aa72afdc171a0794e3 [2022-10-17 11:06:46,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:06:46,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:06:46,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:06:46,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:06:46,512 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:06:46,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-crafted/Singapore_plus.c [2022-10-17 11:06:46,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/data/28e4cf119/03b8e19cef024987830f8e3d94256a75/FLAG3945208db [2022-10-17 11:06:47,267 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:06:47,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/sv-benchmarks/c/termination-crafted/Singapore_plus.c [2022-10-17 11:06:47,275 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/data/28e4cf119/03b8e19cef024987830f8e3d94256a75/FLAG3945208db [2022-10-17 11:06:47,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/data/28e4cf119/03b8e19cef024987830f8e3d94256a75 [2022-10-17 11:06:47,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:06:47,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:06:47,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:47,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:06:47,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:06:47,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:47,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a56c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47, skipping insertion in model container [2022-10-17 11:06:47,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:47,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:06:47,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:06:47,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:47,946 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:06:47,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:47,976 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:06:47,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47 WrapperNode [2022-10-17 11:06:47,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:47,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:47,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:06:47,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:06:47,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:47,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,014 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-10-17 11:06:48,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:48,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:06:48,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:06:48,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:06:48,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:06:48,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:06:48,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:06:48,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:06:48,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (1/1) ... [2022-10-17 11:06:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:48,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:06:48,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:06:48,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:06:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:06:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:06:48,244 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:06:48,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:06:48,444 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:06:48,453 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:06:48,460 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 11:06:48,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:48 BoogieIcfgContainer [2022-10-17 11:06:48,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:06:48,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:06:48,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:06:48,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:06:48,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:06:47" (1/3) ... [2022-10-17 11:06:48,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7efcab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:48, skipping insertion in model container [2022-10-17 11:06:48,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:47" (2/3) ... [2022-10-17 11:06:48,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7efcab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:48, skipping insertion in model container [2022-10-17 11:06:48,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:48" (3/3) ... [2022-10-17 11:06:48,496 INFO L112 eAbstractionObserver]: Analyzing ICFG Singapore_plus.c [2022-10-17 11:06:48,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:06:48,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-17 11:06:48,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:06:48,671 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ab6a74a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:06:48,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-17 11:06:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:06:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 11:06:48,699 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:48,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 11:06:48,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-17 11:06:48,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:48,707 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-10-17 11:06:48,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:48,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073185599] [2022-10-17 11:06:48,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:48,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:06:48,850 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:06:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:06:48,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:06:48,892 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 11:06:48,895 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-10-17 11:06:48,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-10-17 11:06:48,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-10-17 11:06:48,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-10-17 11:06:48,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-10-17 11:06:48,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-10-17 11:06:48,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-10-17 11:06:48,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-10-17 11:06:48,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:06:48,912 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-17 11:06:48,918 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 11:06:48,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 11:06:48 BoogieIcfgContainer [2022-10-17 11:06:48,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 11:06:48,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:06:48,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:06:48,954 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:06:48,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:48" (3/4) ... [2022-10-17 11:06:48,960 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 11:06:49,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 11:06:49,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:06:49,027 INFO L158 Benchmark]: Toolchain (without parser) took 1379.09ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 50.3MB in the end (delta: 15.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-10-17 11:06:49,028 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:06:49,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.12ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 76.9MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:06:49,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.46ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:06:49,036 INFO L158 Benchmark]: Boogie Preprocessor took 23.18ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 74.5MB in the end (delta: 932.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:06:49,037 INFO L158 Benchmark]: RCFGBuilder took 429.18ms. Allocated memory is still 100.7MB. Free memory was 74.5MB in the beginning and 65.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:06:49,037 INFO L158 Benchmark]: TraceAbstraction took 477.14ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 51.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 11:06:49,038 INFO L158 Benchmark]: Witness Printer took 72.27ms. Allocated memory is still 100.7MB. Free memory was 51.8MB in the beginning and 50.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:06:49,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.12ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 76.9MB in the end (delta: -11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.46ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.18ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 74.5MB in the end (delta: 932.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 429.18ms. Allocated memory is still 100.7MB. Free memory was 74.5MB in the beginning and 65.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 477.14ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 51.8MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 72.27ms. Allocated memory is still 100.7MB. Free memory was 51.8MB in the beginning and 50.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] x + y VAL [x=1, y=2147483647] - UnprovableResult [Line: 16]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: 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 1 procedures, 24 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-10-17 11:06:49,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e671393b-c63e-4c0a-b3ab-b7dd3e6596f6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)