./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Binary_Search-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS --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 cf5d51cdbb562fd55acbaf1820d337742de3c190fdffe57e0adfdc0afbf207e1 --- 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-4e7fbc6 [2022-11-23 02:52:47,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:52:47,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:52:47,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:52:47,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:52:47,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:52:47,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:52:47,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:52:47,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:52:47,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:52:47,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:52:47,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:52:47,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:52:47,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:52:47,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:52:47,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:52:47,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:52:47,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:52:47,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:52:47,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:52:47,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:52:47,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:52:47,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:52:47,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:52:47,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:52:47,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:52:47,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:52:47,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:52:47,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:52:47,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:52:47,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:52:47,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:52:47,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:52:47,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:52:47,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:52:47,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:52:47,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:52:47,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:52:47,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:52:47,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:52:47,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:52:47,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 02:52:47,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:52:47,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:52:47,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:52:47,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:52:47,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:52:47,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:52:47,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:52:47,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:52:47,287 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:52:47,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:52:47,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:52:47,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:52:47,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:52:47,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:52:47,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:52:47,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:52:47,291 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:52:47,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:52:47,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:52:47,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:52:47,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:52:47,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:52:47,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:52:47,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:52:47,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:52:47,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:52:47,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:52:47,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:52:47,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:52:47,297 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:52:47,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:52:47,298 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:52:47,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:52:47,299 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf5d51cdbb562fd55acbaf1820d337742de3c190fdffe57e0adfdc0afbf207e1 [2022-11-23 02:52:47,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:52:47,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:52:47,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:52:47,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:52:47,709 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:52:47,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-crafted/Binary_Search-1.c [2022-11-23 02:52:50,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:52:51,190 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:52:51,190 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/sv-benchmarks/c/termination-crafted/Binary_Search-1.c [2022-11-23 02:52:51,198 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/data/bbc3ba665/6cb52c5623bb41d1bd6ed8bc39e68cf4/FLAGb3ad98c1b [2022-11-23 02:52:51,216 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/data/bbc3ba665/6cb52c5623bb41d1bd6ed8bc39e68cf4 [2022-11-23 02:52:51,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:52:51,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:52:51,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:52:51,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:52:51,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:52:51,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94d0b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51, skipping insertion in model container [2022-11-23 02:52:51,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:52:51,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:52:51,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:52:51,434 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:52:51,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:52:51,473 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:52:51,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51 WrapperNode [2022-11-23 02:52:51,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:52:51,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:52:51,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:52:51,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:52:51,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,511 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-11-23 02:52:51,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:52:51,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:52:51,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:52:51,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:52:51,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,530 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:52:51,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:52:51,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:52:51,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:52:51,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (1/1) ... [2022-11-23 02:52:51,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:52:51,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:52:51,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:52:51,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:52:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure binary_search [2022-11-23 02:52:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure binary_search [2022-11-23 02:52:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:52:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:52:51,701 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:52:51,704 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:52:51,967 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:52:51,992 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:52:51,992 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:52:51,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:51 BoogieIcfgContainer [2022-11-23 02:52:51,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:52:51,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:52:51,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:52:52,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:52:52,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:52:51" (1/3) ... [2022-11-23 02:52:52,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb74ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:52, skipping insertion in model container [2022-11-23 02:52:52,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:52:51" (2/3) ... [2022-11-23 02:52:52,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb74ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:52:52, skipping insertion in model container [2022-11-23 02:52:52,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:51" (3/3) ... [2022-11-23 02:52:52,015 INFO L112 eAbstractionObserver]: Analyzing ICFG Binary_Search-1.c [2022-11-23 02:52:52,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:52:52,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 02:52:52,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:52:52,142 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=PETRI_NET, 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;@5e041a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:52:52,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 02:52:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 23 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:52:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 02:52:52,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:52:52,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 02:52:52,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting binary_searchErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [binary_searchErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, binary_searchErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, binary_searchErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:52:52,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:52:52,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1658852382, now seen corresponding path program 1 times [2022-11-23 02:52:52,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:52:52,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953966065] [2022-11-23 02:52:52,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:52:52,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:52:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:52:52,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:52:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:52:52,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:52:52,389 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:52:52,391 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location binary_searchErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-23 02:52:52,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location binary_searchErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-23 02:52:52,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location binary_searchErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-23 02:52:52,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location binary_searchErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-23 02:52:52,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location binary_searchErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-23 02:52:52,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location binary_searchErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-23 02:52:52,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:52:52,403 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 02:52:52,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:52:52,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:52:52 BoogieIcfgContainer [2022-11-23 02:52:52,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:52:52,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:52:52,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:52:52,436 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:52:52,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:52:51" (3/4) ... [2022-11-23 02:52:52,443 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 02:52:52,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:52:52,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:52:52,511 INFO L158 Benchmark]: Toolchain (without parser) took 1290.62ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 109.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-23 02:52:52,512 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:52:52,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.09ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 137.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:52:52,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.88ms. Allocated memory is still 184.5MB. Free memory was 137.8MB in the beginning and 136.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:52:52,514 INFO L158 Benchmark]: Boogie Preprocessor took 23.06ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 135.9MB in the end (delta: 739.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:52:52,517 INFO L158 Benchmark]: RCFGBuilder took 459.33ms. Allocated memory is still 184.5MB. Free memory was 135.3MB in the beginning and 125.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:52:52,518 INFO L158 Benchmark]: TraceAbstraction took 435.48ms. Allocated memory is still 184.5MB. Free memory was 124.8MB in the beginning and 111.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:52:52,518 INFO L158 Benchmark]: Witness Printer took 74.45ms. Allocated memory is still 184.5MB. Free memory was 111.3MB in the beginning and 109.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:52:52,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.09ms. Allocated memory is still 184.5MB. Free memory was 147.3MB in the beginning and 137.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.88ms. Allocated memory is still 184.5MB. Free memory was 137.8MB in the beginning and 136.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.06ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 135.9MB in the end (delta: 739.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.33ms. Allocated memory is still 184.5MB. Free memory was 135.3MB in the beginning and 125.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 435.48ms. Allocated memory is still 184.5MB. Free memory was 124.8MB in the beginning and 111.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 74.45ms. Allocated memory is still 184.5MB. Free memory was 111.3MB in the beginning and 109.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 11]: integer overflow possible integer overflow possible We found a FailurePath: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L21] CALL binary_search(x, y) VAL [unknown-#in~i-unknown=-2147483648, unknown-#in~j-unknown=-1] [L10] COND FALSE !(i>=j) VAL [i=-2147483648, j=-1, unknown-#in~i-unknown=-2147483648, unknown-#in~j-unknown=-1] [L11] i+j VAL [i=-2147483648, j=-1, unknown-#in~i-unknown=-2147483648, unknown-#in~j-unknown=-1] - UnprovableResult [Line: 11]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 14]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 14]: 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, 28 locations, 6 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=28occurred 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, 6 NumberOfCodeBlocks, 6 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! [2022-11-23 02:52:52,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d7249e4-b833-4998-b9be-2ab3a53e627c/bin/uautomizer-QkZJyEgLgS/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)