./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Hanoi_plus.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Hanoi_plus.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R --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 7b5dc76a7122763c0669081c3b29c0ae15fd36eac3d46f6d108a1bec2bda647c --- 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-38b53e6 [2022-11-25 17:31:31,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:31:31,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:31:31,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:31:31,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:31:31,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:31:31,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:31:31,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:31:31,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:31:31,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:31:31,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:31:31,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:31:31,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:31:31,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:31:31,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:31:31,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:31:31,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:31:31,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:31:31,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:31:31,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:31:31,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:31:31,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:31:31,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:31:31,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:31:31,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:31:31,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:31:31,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:31:31,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:31:31,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:31:31,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:31:31,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:31:31,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:31:31,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:31:31,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:31:31,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:31:31,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:31:31,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:31:31,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:31:31,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:31:31,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:31:31,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:31:31,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:31:31,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:31:31,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:31:31,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:31:31,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:31:31,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:31:31,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:31:31,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:31:31,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:31:31,315 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:31:31,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:31:31,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:31:31,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:31:31,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:31:31,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:31:31,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:31:31,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:31:31,318 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:31:31,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:31:31,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:31:31,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:31:31,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:31:31,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:31:31,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:31:31,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:31:31,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:31:31,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:31:31,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:31:31,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:31:31,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:31:31,321 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:31:31,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:31:31,322 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:31:31,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:31:31,322 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_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b5dc76a7122763c0669081c3b29c0ae15fd36eac3d46f6d108a1bec2bda647c [2022-11-25 17:31:31,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:31:31,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:31:31,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:31:31,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:31:31,703 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:31:31,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-crafted/Hanoi_plus.c [2022-11-25 17:31:34,711 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:31:34,948 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:31:34,948 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/sv-benchmarks/c/termination-crafted/Hanoi_plus.c [2022-11-25 17:31:34,954 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/data/2eee38c39/f73af92a295f403b9f3293f0f5a6bb5d/FLAG563d78a71 [2022-11-25 17:31:34,970 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/data/2eee38c39/f73af92a295f403b9f3293f0f5a6bb5d [2022-11-25 17:31:34,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:31:34,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:31:34,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:34,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:31:34,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:31:34,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:34" (1/1) ... [2022-11-25 17:31:34,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5597af75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:34, skipping insertion in model container [2022-11-25 17:31:34,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:34" (1/1) ... [2022-11-25 17:31:34,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:31:35,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:31:35,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:35,194 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:31:35,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:35,225 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:31:35,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35 WrapperNode [2022-11-25 17:31:35,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:35,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:35,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:31:35,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:31:35,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,261 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-11-25 17:31:35,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:35,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:31:35,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:31:35,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:31:35,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:31:35,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:31:35,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:31:35,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:31:35,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (1/1) ... [2022-11-25 17:31:35,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:31:35,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:35,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:31:35,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:31:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:31:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:31:35,471 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:31:35,473 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:31:35,560 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:31:35,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:31:35,567 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:31:35,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:35 BoogieIcfgContainer [2022-11-25 17:31:35,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:31:35,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:31:35,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:31:35,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:31:35,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:31:34" (1/3) ... [2022-11-25 17:31:35,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd011d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:31:35, skipping insertion in model container [2022-11-25 17:31:35,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:35" (2/3) ... [2022-11-25 17:31:35,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd011d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:31:35, skipping insertion in model container [2022-11-25 17:31:35,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:35" (3/3) ... [2022-11-25 17:31:35,581 INFO L112 eAbstractionObserver]: Analyzing ICFG Hanoi_plus.c [2022-11-25 17:31:35,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:31:35,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:31:35,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:31:35,674 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;@349ada1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:31:35,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 17:31:35,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-11-25 17:31:35,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 17:31:35,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:35,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 17:31:35,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:31:35,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:35,692 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-11-25 17:31:35,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:35,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949535601] [2022-11-25 17:31:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:35,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:31:35,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:35,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949535601] [2022-11-25 17:31:35,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949535601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:35,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:35,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:31:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968158949] [2022-11-25 17:31:35,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:35,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:31:35,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:36,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:31:36,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:31:36,043 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-25 17:31:36,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:36,158 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2022-11-25 17:31:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:31:36,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) Word has length 4 [2022-11-25 17:31:36,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:36,178 INFO L225 Difference]: With dead ends: 36 [2022-11-25 17:31:36,179 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 17:31:36,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:31:36,199 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:36,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:31:36,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 17:31:36,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2022-11-25 17:31:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-11-25 17:31:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-25 17:31:36,286 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2022-11-25 17:31:36,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:36,287 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-25 17:31:36,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-25 17:31:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-25 17:31:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:31:36,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:36,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:31:36,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:31:36,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 17:31:36,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:36,290 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2022-11-25 17:31:36,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:36,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315750990] [2022-11-25 17:31:36,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:36,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:36,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:36,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:36,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:31:36,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 17:31:36,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 17:31:36,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 17:31:36,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 17:31:36,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 17:31:36,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 17:31:36,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:31:36,367 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:31:36,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:31:36,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:31:36 BoogieIcfgContainer [2022-11-25 17:31:36,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:31:36,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:31:36,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:31:36,419 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:31:36,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:35" (3/4) ... [2022-11-25 17:31:36,422 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:31:36,453 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:31:36,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:31:36,454 INFO L158 Benchmark]: Toolchain (without parser) took 1479.51ms. Allocated memory is still 182.5MB. Free memory was 149.7MB in the beginning and 111.0MB in the end (delta: 38.7MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-11-25 17:31:36,454 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:31:36,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.09ms. Allocated memory is still 182.5MB. Free memory was 149.7MB in the beginning and 151.7MB in the end (delta: -2.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:31:36,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.62ms. Allocated memory is still 182.5MB. Free memory was 151.7MB in the beginning and 150.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:31:36,456 INFO L158 Benchmark]: Boogie Preprocessor took 23.09ms. Allocated memory is still 182.5MB. Free memory was 150.5MB in the beginning and 149.6MB in the end (delta: 926.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:31:36,457 INFO L158 Benchmark]: RCFGBuilder took 284.09ms. Allocated memory is still 182.5MB. Free memory was 149.6MB in the beginning and 139.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:31:36,458 INFO L158 Benchmark]: TraceAbstraction took 845.92ms. Allocated memory is still 182.5MB. Free memory was 138.3MB in the beginning and 112.7MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-25 17:31:36,459 INFO L158 Benchmark]: Witness Printer took 34.08ms. Allocated memory is still 182.5MB. Free memory was 112.7MB in the beginning and 111.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:31:36,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.09ms. Allocated memory is still 182.5MB. Free memory was 149.7MB in the beginning and 151.7MB in the end (delta: -2.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.62ms. Allocated memory is still 182.5MB. Free memory was 151.7MB in the beginning and 150.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.09ms. Allocated memory is still 182.5MB. Free memory was 150.5MB in the beginning and 149.6MB in the end (delta: 926.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.09ms. Allocated memory is still 182.5MB. Free memory was 149.6MB in the beginning and 139.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 845.92ms. Allocated memory is still 182.5MB. Free memory was 138.3MB in the beginning and 112.7MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 34.08ms. Allocated memory is still 182.5MB. Free memory was 112.7MB in the beginning and 111.0MB 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.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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x, y, z; [L13] x = __VERIFIER_nondet_int() [L14] y = __VERIFIER_nondet_int() [L15] z = __VERIFIER_nondet_int() [L16] COND TRUE x > 0 VAL [x=1, y=2147483647, z=0] [L17] x + y VAL [x=1, y=2147483647, z=0] - UnprovableResult [Line: 17]: 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, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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! [2022-11-25 17:31:36,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a08c8-7a4b-431f-bdd9-f2e716db26dc/bin/uautomizer-ZsLfNo2U6R/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)