./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/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_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/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 32bit --witnessprinter.graph.data.programhash e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- 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 02:48:37,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:48:37,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:48:37,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:48:37,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:48:37,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:48:37,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:48:37,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:48:37,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:48:37,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:48:37,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:48:37,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:48:37,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:48:37,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:48:37,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:48:37,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:48:37,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:48:37,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:48:37,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:48:37,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:48:37,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:48:37,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:48:37,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:48:37,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:48:37,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:48:37,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:48:37,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:48:37,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:48:37,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:48:37,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:48:37,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:48:37,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:48:37,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:48:37,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:48:37,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:48:37,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:48:37,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:48:37,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:48:37,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:48:37,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:48:37,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:48:37,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 02:48:37,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:48:37,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:48:37,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:48:37,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:48:37,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:48:37,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:48:37,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:48:37,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:48:37,327 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:48:37,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:48:37,329 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:48:37,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:48:37,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:48:37,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:48:37,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:48:37,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:48:37,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:48:37,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:48:37,331 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:48:37,331 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:48:37,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:48:37,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:48:37,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:48:37,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:48:37,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:48:37,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:48:37,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:48:37,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:48:37,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:48:37,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:48:37,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:48:37,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:48:37,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:48:37,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:48:37,336 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:48:37,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:48:37,336 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_1425fb71-1774-4dbb-9bc6-165a278d7611/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2022-11-23 02:48:37,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:48:37,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:48:37,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:48:37,667 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:48:37,668 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:48:37,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2022-11-23 02:48:41,028 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:48:41,298 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:48:41,299 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2022-11-23 02:48:41,306 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/data/392057102/91dba59d63ae4d938ad1a90cc9dcc011/FLAGc47b5a15a [2022-11-23 02:48:41,323 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/data/392057102/91dba59d63ae4d938ad1a90cc9dcc011 [2022-11-23 02:48:41,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:48:41,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:48:41,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:48:41,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:48:41,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:48:41,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240785ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41, skipping insertion in model container [2022-11-23 02:48:41,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:48:41,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:48:41,552 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2022-11-23 02:48:41,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:48:41,570 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:48:41,583 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2022-11-23 02:48:41,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:48:41,599 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:48:41,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41 WrapperNode [2022-11-23 02:48:41,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:48:41,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:48:41,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:48:41,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:48:41,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,634 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-23 02:48:41,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:48:41,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:48:41,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:48:41,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:48:41,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:48:41,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:48:41,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:48:41,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:48:41,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (1/1) ... [2022-11-23 02:48:41,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:48:41,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:48:41,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:48:41,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:48:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:48:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-11-23 02:48:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-11-23 02:48:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:48:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:48:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2022-11-23 02:48:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2022-11-23 02:48:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:48:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:48:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:48:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:48:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:48:41,827 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:48:41,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:48:41,955 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:48:41,962 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:48:41,962 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:48:41,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:41 BoogieIcfgContainer [2022-11-23 02:48:41,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:48:41,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:48:41,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:48:41,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:48:41,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:48:41" (1/3) ... [2022-11-23 02:48:41,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffe59ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:41, skipping insertion in model container [2022-11-23 02:48:41,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:48:41" (2/3) ... [2022-11-23 02:48:41,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffe59ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:48:41, skipping insertion in model container [2022-11-23 02:48:41,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:41" (3/3) ... [2022-11-23 02:48:41,974 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2022-11-23 02:48:41,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:48:41,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:48:42,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:48:42,062 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;@530faef8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:48:42,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 02:48:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:48:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 02:48:42,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:48:42,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:42,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:48:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1683809247, now seen corresponding path program 1 times [2022-11-23 02:48:42,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:42,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023254669] [2022-11-23 02:48:42,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:42,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:42,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:42,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023254669] [2022-11-23 02:48:42,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023254669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:42,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:48:42,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:48:42,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562660463] [2022-11-23 02:48:42,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:42,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:48:42,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:42,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:48:42,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:48:42,821 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:48:43,039 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-11-23 02:48:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:48:43,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 02:48:43,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:48:43,063 INFO L225 Difference]: With dead ends: 46 [2022-11-23 02:48:43,063 INFO L226 Difference]: Without dead ends: 18 [2022-11-23 02:48:43,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 02:48:43,070 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 02:48:43,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 86 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 02:48:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-23 02:48:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-23 02:48:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:43,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-23 02:48:43,124 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2022-11-23 02:48:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:48:43,125 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-23 02:48:43,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-23 02:48:43,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 02:48:43,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:48:43,127 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:43,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:48:43,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:48:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1706830411, now seen corresponding path program 1 times [2022-11-23 02:48:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:43,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82362394] [2022-11-23 02:48:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:43,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:43,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:43,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82362394] [2022-11-23 02:48:43,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82362394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:48:43,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274771003] [2022-11-23 02:48:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:43,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:48:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:48:43,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:48:43,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 02:48:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:43,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-23 02:48:43,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:48:44,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 02:48:44,431 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 02:48:44,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-23 02:48:44,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 02:48:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:44,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:48:45,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:45,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274771003] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 02:48:45,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 02:48:45,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 11] total 30 [2022-11-23 02:48:45,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245958055] [2022-11-23 02:48:45,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:45,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 02:48:45,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 02:48:45,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930 [2022-11-23 02:48:45,102 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:45,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:48:45,471 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-23 02:48:45,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 02:48:45,472 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-23 02:48:45,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:48:45,474 INFO L225 Difference]: With dead ends: 19 [2022-11-23 02:48:45,474 INFO L226 Difference]: Without dead ends: 18 [2022-11-23 02:48:45,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=147, Invalid=1259, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 02:48:45,477 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:48:45,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 27 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:48:45,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-23 02:48:45,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-11-23 02:48:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-23 02:48:45,485 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2022-11-23 02:48:45,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:48:45,485 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-23 02:48:45,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:45,486 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-23 02:48:45,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 02:48:45,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:48:45,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:48:45,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:48:45,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:48:45,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:48:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1372135132, now seen corresponding path program 1 times [2022-11-23 02:48:45,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:45,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961695305] [2022-11-23 02:48:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:45,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:46,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:46,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961695305] [2022-11-23 02:48:46,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961695305] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:48:46,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961550490] [2022-11-23 02:48:46,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:46,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:48:46,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:48:46,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:48:46,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 02:48:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:46,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-23 02:48:46,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:48:46,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 02:48:46,421 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 02:48:46,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 26 [2022-11-23 02:48:46,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 02:48:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:46,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:48:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:46,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961550490] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:48:46,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:48:46,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2022-11-23 02:48:46,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837889566] [2022-11-23 02:48:46,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:48:46,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-23 02:48:46,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:46,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-23 02:48:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2022-11-23 02:48:46,823 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:48:47,230 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-11-23 02:48:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 02:48:47,231 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 02:48:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:48:47,232 INFO L225 Difference]: With dead ends: 32 [2022-11-23 02:48:47,232 INFO L226 Difference]: Without dead ends: 31 [2022-11-23 02:48:47,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=224, Invalid=1498, Unknown=0, NotChecked=0, Total=1722 [2022-11-23 02:48:47,235 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 35 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 02:48:47,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 43 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 02:48:47,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-23 02:48:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-23 02:48:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-11-23 02:48:47,250 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 16 [2022-11-23 02:48:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:48:47,251 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-11-23 02:48:47,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 19 states have internal predecessors, (32), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-11-23 02:48:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 02:48:47,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:48:47,255 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-11-23 02:48:47,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:48:47,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 02:48:47,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:48:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:48:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1593443428, now seen corresponding path program 2 times [2022-11-23 02:48:47,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:48:47,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608078080] [2022-11-23 02:48:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:48:47,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:48:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:48:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:48:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:48:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608078080] [2022-11-23 02:48:48,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608078080] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:48:48,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425434584] [2022-11-23 02:48:48,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 02:48:48,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:48:48,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:48:48,495 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:48:48,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 02:48:48,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 02:48:48,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:48:48,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 02:48:48,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:48:48,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 02:48:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 02:48:48,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:48:48,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425434584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:48:48,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 02:48:48,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 25 [2022-11-23 02:48:48,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398899324] [2022-11-23 02:48:48,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:48:48,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:48:48,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:48:48,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:48:48,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-11-23 02:48:48,721 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:48,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:48:48,779 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-11-23 02:48:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:48:48,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-23 02:48:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:48:48,781 INFO L225 Difference]: With dead ends: 31 [2022-11-23 02:48:48,781 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 02:48:48,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-11-23 02:48:48,786 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:48:48,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:48:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 02:48:48,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 02:48:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 02:48:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 02:48:48,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-11-23 02:48:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:48:48,797 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:48:48,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:48:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:48:48,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 02:48:48,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 02:48:48,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 02:48:48,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:48:49,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:48:49,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 02:48:49,399 INFO L899 garLoopResultBuilder]: For program point fooEXIT(lines 11 20) no Hoare annotation was computed. [2022-11-23 02:48:49,400 INFO L895 garLoopResultBuilder]: At program point fooENTRY(lines 11 20) the Hoare annotation is: (let ((.cse1 (select |old(#memory_int)| |foo_#in~p.base|))) (let ((.cse5 (select .cse1 |foo_#in~p.offset|)) (.cse2 (select |#memory_int| |foo_#in~p.base|))) (let ((.cse0 (not (= |foo_#in~p.offset| 0))) (.cse4 (select .cse2 |foo_#in~p.offset|)) (.cse3 (not (< 0 (+ 2147483650 .cse5))))) (and (or .cse0 (not (<= (select .cse1 0) 11)) (<= (select .cse2 0) 11) .cse3) (or (= .cse4 10) .cse0 (not (= .cse5 10))) (or (not (< .cse5 2147483647)) .cse3 (< .cse4 2147483647)) (or (< 0 (+ .cse4 2147483650)) .cse3))))) [2022-11-23 02:48:49,400 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2022-11-23 02:48:49,400 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 19) no Hoare annotation was computed. [2022-11-23 02:48:49,401 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (let ((.cse3 (select |old(#memory_int)| |foo_#in~p.base|))) (let ((.cse1 (select |#memory_int| |foo_#in~p.base|)) (.cse0 (select |#memory_int| foo_~p.base)) (.cse7 (select .cse3 |foo_#in~p.offset|))) (let ((.cse2 (not (= |foo_#in~p.offset| 0))) (.cse4 (not (< 0 (+ 2147483650 .cse7)))) (.cse6 (select .cse0 foo_~p.offset)) (.cse5 (select .cse1 |foo_#in~p.offset|))) (and (or (and (<= (select .cse0 0) 11) (<= (select .cse1 0) 11) (= foo_~p.offset 0)) .cse2 (not (<= (select .cse3 0) 11)) .cse4) (or (and (= .cse5 10) (= .cse6 10)) .cse2 (not (= .cse7 10))) (or (not (< .cse7 2147483647)) .cse4 (< .cse5 2147483647)) (or .cse4 (and (<= .cse6 19) (< 0 (+ .cse6 2147483650)) (< 0 (+ .cse5 2147483650)))))))) [2022-11-23 02:48:49,401 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 19) no Hoare annotation was computed. [2022-11-23 02:48:49,401 INFO L899 garLoopResultBuilder]: For program point L12-1(lines 11 20) no Hoare annotation was computed. [2022-11-23 02:48:49,401 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 02:48:49,401 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 02:48:49,401 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 02:48:49,401 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 02:48:49,402 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (= (select (select |#memory_int| |ULTIMATE.start_main_~p~0#1.base|) |ULTIMATE.start_main_~p~0#1.offset|) 10) (= |ULTIMATE.start_main_~p~0#1.offset| 0)) [2022-11-23 02:48:49,402 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-23 02:48:49,402 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 28) no Hoare annotation was computed. [2022-11-23 02:48:49,402 INFO L899 garLoopResultBuilder]: For program point plusFINAL(lines 6 9) no Hoare annotation was computed. [2022-11-23 02:48:49,402 INFO L895 garLoopResultBuilder]: At program point plusENTRY(lines 6 9) the Hoare annotation is: (let ((.cse5 (select |old(#memory_int)| |plus_#in~p.base|))) (let ((.cse0 (select .cse5 |plus_#in~p.offset|)) (.cse3 (select |#memory_int| |plus_#in~p.base|))) (let ((.cse1 (not (= |plus_#in~p.offset| 0))) (.cse2 (select .cse3 |plus_#in~p.offset|)) (.cse4 (not (< 0 (+ 2147483650 .cse0))))) (and (or (not (= .cse0 10)) .cse1 (= .cse2 10)) (or .cse1 (<= (select .cse3 0) 11) .cse4 (not (<= (select .cse5 0) 11))) (or (and (< 0 (+ 2147483650 .cse2)) (<= .cse2 19)) .cse4 (not (<= .cse0 19))))))) [2022-11-23 02:48:49,403 INFO L899 garLoopResultBuilder]: For program point plusErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-23 02:48:49,403 INFO L899 garLoopResultBuilder]: For program point plusEXIT(lines 6 9) no Hoare annotation was computed. [2022-11-23 02:48:49,403 INFO L895 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (let ((.cse7 (select |old(#memory_int)| |plus_#in~p.base|))) (let ((.cse2 (select |#memory_int| |plus_#in~p.base|)) (.cse3 (select |#memory_int| plus_~p.base)) (.cse0 (select .cse7 |plus_#in~p.offset|))) (let ((.cse1 (not (= |plus_#in~p.offset| 0))) (.cse6 (not (< 0 (+ 2147483650 .cse0)))) (.cse5 (select .cse3 plus_~p.offset)) (.cse4 (select .cse2 |plus_#in~p.offset|))) (and (or (not (= .cse0 10)) .cse1 (and (<= (select .cse2 0) 11) (<= (select .cse3 0) 11) (= plus_~p.offset 0))) (or (and (< .cse4 2147483646) (< .cse5 2147483647)) .cse1 .cse6 (not (<= (select .cse7 0) 11))) (or .cse6 (not (<= .cse0 19)) (and (< 0 (+ .cse5 2147483650)) (< 0 (+ 2147483651 .cse4)))))))) [2022-11-23 02:48:49,403 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-23 02:48:49,403 INFO L899 garLoopResultBuilder]: For program point plusErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7) no Hoare annotation was computed. [2022-11-23 02:48:49,403 INFO L899 garLoopResultBuilder]: For program point L7-1(line 7) no Hoare annotation was computed. [2022-11-23 02:48:49,407 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-23 02:48:49,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:48:49,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:48:49 BoogieIcfgContainer [2022-11-23 02:48:49,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:48:49,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:48:49,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:48:49,415 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:48:49,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:48:41" (3/4) ... [2022-11-23 02:48:49,419 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 02:48:49,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2022-11-23 02:48:49,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2022-11-23 02:48:49,431 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 02:48:49,431 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 02:48:49,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 02:48:49,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:48:49,432 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 02:48:49,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:48:49,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:48:49,467 INFO L158 Benchmark]: Toolchain (without parser) took 8138.97ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 123.9MB in the beginning and 84.0MB in the end (delta: 39.9MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,467 INFO L158 Benchmark]: CDTParser took 11.18ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 105.0MB in the end (delta: -13.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.07ms. Allocated memory is still 155.2MB. Free memory was 123.9MB in the beginning and 114.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.56ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 112.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,468 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 111.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:48:49,468 INFO L158 Benchmark]: RCFGBuilder took 304.34ms. Allocated memory is still 155.2MB. Free memory was 111.5MB in the beginning and 101.2MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,469 INFO L158 Benchmark]: TraceAbstraction took 7447.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 100.2MB in the beginning and 87.2MB in the end (delta: 13.1MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,469 INFO L158 Benchmark]: Witness Printer took 51.68ms. Allocated memory is still 186.6MB. Free memory was 87.2MB in the beginning and 84.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:48:49,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 11.18ms. Allocated memory is still 127.9MB. Free memory was 91.3MB in the beginning and 105.0MB in the end (delta: -13.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.07ms. Allocated memory is still 155.2MB. Free memory was 123.9MB in the beginning and 114.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.56ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 112.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 111.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.34ms. Allocated memory is still 155.2MB. Free memory was 111.5MB in the beginning and 101.2MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7447.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 100.2MB in the beginning and 87.2MB in the end (delta: 13.1MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Witness Printer took 51.68ms. Allocated memory is still 186.6MB. Free memory was 87.2MB in the beginning and 84.0MB in the end (delta: 3.1MB). 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 - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 40 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=3, InterpolantAutomatonStates: 44, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 436 HoareAnnotationTreeSize, 17 FomulaSimplifications, 73 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 392 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 910 SizeOfPredicates, 44 NumberOfNonLiveVariables, 329 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 48/111 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 02:48:49,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1425fb71-1774-4dbb-9bc6-165a278d7611/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 Result: TRUE